Here we have a  chronology of Anthony Trollope's works (It does not include his miscellaneous essays, criticism, public letters and other various short non-fiction pieces.) Click upon title for a brief description of each novel. There are some e-texts (Hunting Sketches, Ayala's Angel).
 

The Macdermots of Ballycloran: A Historical Romance
        Written 1843 (September) - 1845 (June)
        Published as a book 1847 (March), Newby
The Kellys and O'Kellys; or Landlords and Tenants
        Written ?1845-8
        Published as a book 1848 (27 June), Henry Colburn
La Vendée; A Historical Romance
        Written 1848-9
        Published as a book 1850 (June), Henry Colburn
The Noble Jilt
        Written 1850,18 June
        Published as a book 1923, Constable
The Warden
        Written 1852 (29 July) - 1853 (autumn)
        Published as a book 1855 (5 January), Wm Longman
        A Cover Illustration (& at least 2) by F. C. Tilney (later edition)
New Zealander
        Written 1855 (February through March)
        Published as a book 1971, Oxford (editor, N. John Hall)
Barchester Towers
        Written 1856 (12 May - 9 November)
        Published as a book 1857 (May), Wm Longman
The Three Clerks
        Written 1857 (15 February - 18 August)
        Published as a book 1857 (November), Richard Bentley
        Frontispiece and Title Page by J Mahoney (1865, new edition, Bentley)
The Struggles of Brown, Jones, and Robinson: By One of the Firm
        Written: began 1857 (24 August - 7 September); broke off until 1861 (23 June - 3 August)
        Serialized Cornhill (August 1861 - March 1862)
        Published as a book 1870 (November), George Smith
        Four Plates by Unknown Hands
        *An Earlier Pirated American edition 1862 (April), Harper Bros.
Dr Thorne
        Written 1857 (20 October) - 1858 (31 March)
        Published as a book 1858 (May), Chapman and Hall
        4 Illustrations by H. L. Schlinder (later edition)
The Bertrams
        Written 1858 (1 April - 26 December)
        Published as a book 1859 (March), Chapman and Hall
The West Indies and the Spanish Main
        Written 1859 (1 January - June)
        Published as a book 1859 (October), Chapman and Hall
"Relics of General Chassé, A Tale of Antwerp"
        Written 1859 (July)
        Published 1860 (February), Harper's New Monthly Magazine
        Published in a book 1861 (November), Tales of All Countries: First Series , Chapman and Hall
"The Courtship of Susan Bell"
        Written 1859 (July)
        Published 1860 (August), Harper's New Monthly Magazine
        Published in a book 1861 (November),Tales of All Countries: First Series, Chapman and Hall
Castle Richmond
        Written 1859 (4 August) - 1860 (28 February)
        Published as a book 1860 (May), Chapman and Hall
"O'Conors of Castle Conor, County Mayo"
        ?earlier version written 1841 (September), Archibald Green story
        Written 1859 (1 September - 29 October), inbetween writing Castle Richmond
        Published 1860 (May),Harper's New Monthly Magazine
        Published in a book 1861 (November), Tales of All Countries: First Series, Chapman and Hall
"La Mère Bauche"
        Written 1859 (1 September - 29 October), inbetween writing Castle Richmond
        Sold 1859 to Harper's New Monthly Magazine, but not printed
        Published in a book 1861 (November), Tales of All Countries: First Series, Chapman and Hall
"An Unprotected Female at the Pyramids"
        Written 1859 (1 September - 29 October), inbetween writing Castle Richmond
        Serialized 1860 (October 6 & 13), Cassell's Illustrated Family Paper
        Published in a book 1861 (November), Tales of All Countries: First Series, Chapman and Hall
"The Château of Prince Polignac"
        Written 1859 (1 September - 29 October), inbetween writing Castle Richmond
        Serialized 1860 (October 20 & 27), Cassell's Illustrated Family Paper
        Published in a book 1861 (November), Tales of All Countries: First Series, Chapman and Hall
"Miss Sarah Jack of Spanish Town, Jamaica"
        Written 1859 (1 September - 29 October), inbetween writing Castle Richmond
        Serialized 1860 (Novembr 3 & 10), Cassell's Illustrated Family Paper
        Published in a book 1861 (November), Tales of All Countries: First Series , Chapman and Hall
Framley Parsonage
        Written 1859 (2 November) - 1860 (27 June)
        Serialized 1860 (January) - 1861 (April), Cornhill
        Illustrated John Everett Millais
        Published as a book 1861 (April), George Smith
"Father Giles of Ballymoy"
        ?earlier version written 1841 (September), Archibald Green story
        Published 1860 (May), Argosy
        Published in a book 1867 (August), Lotta Schmidt and Other Stories, Strahan
        Another version published in William Le Fanu's Seventy Years of Irish Life. London, Edward Arnold, 1983 pp. 190-2
"John Bull on the Guadalquivir" ("Spanish Story")
        Written 1860 (1 - 7 June)
        Serialized 1860 (17 & 24 November), Cassell's Illustrated Family Paper
        Published in a book 1861 (November), Tales of All Countries: First Series, Chapman and Hall
Orley Farm
        Written 1860 (4 July) - 1861 (22 June)
        Serialized 1861 (March) - 1862 (October), Monthly Shilling Parts
        Illustrated John Everett Millais
        Published as a book 1861 (Volume I, December), 1862 (Volume II, September Chapman and Hall
"A Ride Across Palestine" (alternate title: "The Banks of the Jordan")
        Written 1860 (19 - 29 July)
        Serialized 1861 (5, 12, 19 January), The London Review as "The Banks of the Jordan", Rejected by Cornhill
        Published in a book 1863 (February), Tales of All Countries: Second Series, Chapman and Hall
"Mrs General Talboys"
        Written 1860 (6 - 10 November)
        Published 1861 (2 February), The London Review, rejected by Cornhill
        Published in a book 1863 (February), Tales of All Countries: Second Series, Chapman and Hall
"The Parson's Daughter of Oxney Colne"
        Written 1861 (13 - 19 January)
        Published 1861 (2 March), The London Review
        Published in a book 1863 (February), Tales of All Countries: Second Series, Chapman and Hall
"Returning Home"
        Written 1861 (20 - 26 January)
        Published 1861 (1 December), Public Opinion
        Published in a book 1863 (February), Tales of All Countries: Second Series, Chapman and Hall
"The Man Who Kept His Money in a Box"
        Written 1861 (27 January - February 1)
        Published 1861 (November 2 & 9), Public Opinion
        Published in a book 1863 (February), Tales of All Countries: Second Series, Chapman and Hall
"Aaron Trowe"
        Written 1861 (February 3 - 12)
        Serialized 1861 (14 & 16 December), Public Opinion
        Published in a book 1863 (February), Tales of All Countries: Second Series, Chapman and Hall
"The House of Heine Brothers in Munich"
        Written 1861 (7 - 10 April)
        Serialized 1861 (16 & 23 November), Public Opinion
        Published in a book 1863 (February), Tales of All Countries: Second Series, Chapman and Hall
"George Walker at Suez"
        Written 1861 (12 - 15 April)
        Published 1861 (28 December), Public Opinion
        Published in a book 1863 (February), Tales of All Countries: Second Series, Chapman and Hall
"The Mistletoe Bough"
        Written 1861 (4 August)
        Published 1861 (21 December), The illustrated London News, Christmas Supplement
        Published in a book 1863 (February), Tales of All Countries: Second Series, Chapman and Hall
North America
        Written 1861 (16 September) - 1862 (17 April)
        Published as a book 1862 (May), Chapman and Hall
"The Journey to Panama"
        Written by 1861 (November)
        Published 1861, The Victoria Regia: Original Contributions in Poetry and Prose, editor Adelaide A Proctor (Emily Faithfull at the the Victoria Press
        Published in a book 1867 (August), Lotta Schmidt and Other Stories, Strahan
The Small House at Allington
        Written 1862 (20 May) - 1863 (11 February)
        Serialized 1862 (September) - 1864 (April), Cornhill Illustrated John Everett Millais
        Oil Painting, Trust Me, which may illustrate this or an earlier novel, perhaps Orley Farm, see above
        Published as a book 1864 (April), George Smith
"Miss Ophelia Gledd"
        ?Written 1862 (March or by March), Archibald Green story
        Published 1863 A Welcome: Original Contributions in Poetry and Prose Addressed to Alexandria, Princess of Wales (Emily Faithfull)
        Published in a book 1867 (August), Lotta Schmidt and Other Stories, Strahan
"The Widow's Mite"
        Written 1862 (18 November - 8 December)
        Published 1863 (January), Good Words
        Published in a book 1867 (August), Lotta Schmidt and Other Stories, Strahan
Rachel Ray
        Written 1863 (3 March - 29 June)
        Published as a book 1863 (October), Chapman and Hall
        Frontispiece and watercolor painting by John Everett Millais
Can You Forgive Her?
        Written 1863 (16 August - 1864 (28 April)
        Serialized 1864 (January) to 1865 (August), Monthly Shilling Parts
        Illustrated Hablot Browne (Phiz) & Miss E Taylor
        Published as a book 1864 (Volume I, September), 1865 (Volume II, July) Chapman and Hall
"The Two Generals"
        Written 1863 (29 October - 8 November)
        Published 1863 (December), Good Words Published in a book 1867 (August), Lotta Schmidt and Other Stories , Strahan
Miss Mackenzie
        Written 1864 (22 May - 18 August)
        Published as a book 1865 (February), Chapman and Hall
        Frontispiece and Title Page Illustration by Walter Crane
The Claverings
        Written 1864 (24 August - 31 December)
        Serialized 1866 (February) - 1867 (May), Cornhill
        Illustrated Mary Ellen Edwards
        Published as a book 1867 (April), Smith & Elder
"Malachi's Cove"
        Written 1864 (6 - 9 September)
        Published 1864 (December), Good Words Published in a book 1867 (August), Lotta Schmidt and Other Stories, Strahan
The Belton Estate
        Written 1865 (30 January - 4 September)
        Serialised 1865 (15 May) - 1866 (1 January), Fortnightly Review
        Published as a book 1865 (December), Chapman and Hall
Hunting Sketches    (e-text)
        Written 1865 (9 February - 20 March)
        Serialized 1865, Pall Mall Gazette
        Published as a book 1865 (May), Chapman and Hall
Travelling Sketches
        Written 1865 (3 August - 6 September)
        Serialized 1865, Pall Mall Gazette
        Published as a book 1866 (February), Chapman and Hall
Nina Balatka, The Story of a Maiden of Prague
        Written 1865 (3 November - 31 December)
        Serialized 1866 (July) - 1867 (January), Blackwood's
        Published as a book 1867 (January), Blackwood
Clergymen of the Church of England
        Written (begun) 1865 (20 Novemeber, "Clerical Sketch"), completed 1866 (25 January)
        Serialized 1865 - 1866, Pall Mall Gazette
        Published as a book 1866 (March), Chapman and Hall
The Last Chronicle of Barsetshire
        Written 1866 (20 January - 15 September)
        Serialized 1866 (1 December) - 1867 (6 July), Weekly Sixpenny Parts
        Illustrated 1866, George Housman Thomas; 1878, Francis Arthur Fraser
        Published as a book 1867 (Volume I, March, Volume II, July), Smith and Elder
Phineas Finn, the Irish Member
        Written 1866 (17 November) - 1867 (15 May)
        Serialized 1867 (October) to 1868 (May), St Paul's
        Illustrated John Everett Millais
        Published as a book 1869 (March), George Virtue
"The Gentle Euphemia"
        ?There is nothing to suggest when it was written.
        Published 1866 (1 May), Fortnightly Review
"Lotta Schmidt"
        ?1865-67, Trollope travelled in Vienna; it was written during this time
        Published 1866 (Christmas Number), Argosy
        Published in a book 1867 (August), Lotta Schmidt and Other Stories, Strahan
"The Adventures of Fred Pickering"
        ?Written 1864 (9 March), when AT joined Royal Literary Fund Published 1866 (September), The Argosy
        Published in a book 1867 (August), Lotta Schmidt and Other Stories, Strahan
"The Last Austrian Who Left Venice"
        Written 1866 (8 - 14 December)
        Published 1867 (January), Good Words
        Published in a book 1867 (August), Lotta Schmidt and Other Stories, Strahan
Linda Tressel
        Written 1867 (2 June - 10 July)
        Serialized 1867 (October) - 1868 (May), Blackwood's
        Published as a book 1868 (May), Blackwood
The Golden Lion of Granpère
        Written 1867 (1 September - 22 October)
        Serialized 1872 (January - August), Good Words
        Illustrated by Francis Arthur Fraser
        Published as a book 1872 (May), Wm Tinsley (associate of Strahan), also Harper in US (with illustrations)
He Knew He Was Right
        Written 1867 (13 November) - 1868 (12 June)
        Serialized 1868 (17 October) - 1869 (22 May), Weekly Sixpenny Parts
        Illustrated Marcus Stone
        Published as a book 1869 (May), Strahan
The Vicar of Bullhampton
        Written 1868 (15 June - 1 November)
        Serialized 1869 (July - 1870 (May), Monthly shilling numbers
        Illustrated Henry Woods
        Published as a book 1870 (April), Bradbury and Evans
Sir Harry Hotspur of Humblethwaite
        Written 1868 (27 December) - 1869 (30 January)
        Serialized 1870 (May - December), Macmillan's Magazine
        Published as a book 1871, Hurst and Blackett
Ralph the Heir
        Written 1869 (4 April - 7 August)
        Serialized 1870 (January) - 1871 (July), St Paul's, Supplement, monthly numbers
        Illustrated Francis Arthur Fraser
        Published as a book 1871 (April), Hurst and Blackett
Did He Steal It?
        Written 1869 (25 March), play adapted from Last Chronicle of Barsetshire
        Privately printed by George Virtue
        Published as a book 1952, Princeton University Press
"The Turkish Bath"
        ?Written after 1867 (October) when he became editor of St Paul's
        Published 1869 (October), St Paul's
        Published in a book 1870 (June), An Editor's Tales, Strahan
"Mary Gresley"
        ?Written after 1867 (October) when he became editor of St Paul's
        Published 1869 (November), St Paul's
        Published in a book 1870 (June), An Editor's Tales, Strahan
"Josephine de Montmorenci"
        ?Written after 1867 (October) when he became editor of St Paul's
        Published 1869 (December), St Paul's
        Published in a book 1870 (June), An Editor's Tales, Strahan
The Eustace Diamonds
        Written 1869 (4 December - 1870 (25 August)
        Serialized 1871 (July) - 1873 (February), Fortnightly Review
        Published as a book 1872 (October), Chapman and Hall
        There is a Frontispiece to 1876 Chapman & Hall edition
"The Panjandrum"
        ?Written 1865 (tales of inner circle of promoters for Pall Mall Gazette or earlier, 1841-42?, narrator a Mr Green
        Published 1870 (January - February), St Paul's
        Published in a book 1870 (June), An Editor's Tales, Strahan
The Commentaries of Caesar
        Written 1870 (9 January - 25 April)
    Published as a book 1870 (June), Blackwood
"The Spotted Dog"
        ?Written after 1867 (October) when he became editor of St Paul's
        Serialized 1870 (March - April), St Paul's
        Published in a book 1870 (June), An Editor's Tales, Strahan
"Mrs Brumby"
        ?Written after 1867 (October) when he became editor of St Paul's
        Published 1870 (May), St Paul's
        Published in a book 1870 (June), An Editor's Tales, Strahan
"Christmas Day at Kirby Cottage"
        Written 1870 (3 - 10 June)
        Published 1870, Routledge's Christmas Annual
An Eye for An Eye
        Written 1870 (13 September - 10 October)
        Serialized 1878 (24 August) - 1879 (1 February), Whitehall Review
        Published as a book 1879 (January), Chapman and Hall
Phineas Redux
        Written 1870 (23 October) - 1871 (1 April)
        Serialized 1873 (19 July) - 1874 (10 January), Graphic
        Illustrated Francis Montague Holl
        Published as a book 1873 (December), Chapman and Hall
Lady Anna
        Written 1871 (25 May - 19 July)
        Serialized 1873 (April) - 1874 (April), Fortnightly Review
        Published as a book 1874 (March), Chapman and Hall
Australia and New Zealand
        Written 1871 (23 October) - 1873 (January 15)
        Published as a book 1873 (Febuary), Chapman and Hall
The Way We Live Now
        Written 1873 (1 May - 22 December)
        Serialized 1874 (February) - 1875 (September), Monthly Shilling Parts
        Illustrated Lionel F. Fawkes
        Published as a book 1875 (June), Chapman and Hall
Harry Heathcoat of Gangoil. A Tale of Australian Bush Life
        Written 1873 (1 - 28 June)
        Serialized 1873 (15 November - 1874 (January); also 20 December Graphic
        6 Illustrations by Unknown Hands
        Published as a book 1874 (October), Sampson Low
The Prime Minister
        Written 1874 (1 April - 15 September)
        Serialized 1875 (November) - 1876 (June), Monthly Shilling Parts
        Published as a book 1876 (June), Chapman and Hall
Is He Popenjoy?
        Written 1874 (12 October) - 1875 (3 May)
        Serialized 1877 (13 October) - 1878 (1 July), All the Year Round
        Published as a book 1878 (April), Chapman and Hall
The American Senator
        Written 1875 (4 June - 24 September)
        Serialized 1876 (May) - 1877 (July), Temple Bar
        Published as a book 1877 (June), Chapman and Hall
"Never, never, -- Never, never: A Condensed Novel in Three Parts, after the Manner of Bret Harte"
        Written 1875 (October - November)
        Serialized 1875 (6, 8, 10 December), Sheets for the Cradle
        Published as a book 1971, privately printed, introd. Lance O. Tingay
An Autobiography
        Written 1875 (October) - 1876 (April), revised sometime in 1879
        Published as a book 1883 (October), Blackwood
"Christmas at Thompson Hall"
        Written 1876 (April)
        Published 1876, Graphic, Christmas Number
        Illustrated William Small
        Published in a book 1882 (December), Why Frau Frohmann Raised Her Prices; and Other Stories, Wm Isbister
The Duke's Children
        Written 1876 (2 May - 29 October)
        Serialized 1879 (4 October) - 1880 (14 July), All the Year Round
        Published as a book 1880 (May), Chapman and Hall
John Caldigate
        Written 1877 (3 February - 21 July)
        Serialized 1878 (April) - 1879 (June), Blackwood's
        Published as a book 1879 (May), Chapman and Hall
"Why Frau Frohmann Raised Her Prices"
        ?There is no document to pinpoint when this was written;
        Asked by Donald Macleod, brother and successor to Norman Macleod at Good Words for a 'storiette', 1876     (24 October),   Trollope produced this, paid £175.
        Serialized 1877 (February - May), Good Words
        Published in a book 1882 (December), Why Frau Frohmann Raised Her Prices; and Other Stories, Wm Isbister
Life of Cicero
        Begins research 1877 (22 February); written by 1880 (26 May)
        Published as a book 1880 (November), Chapman and Hall
South Africa
        Written 1877 (23 July) - 1878 (2 January)
        Published as a book 1878 (February), Chapman and Hall
"The Telegraph Girl"
        ?Written as companion piece to journalistic essay, "The Young Women at the Telegraph Office", published 1877 (June), Good Words
        Published 1877 (December), Good Cheer, Christmas Number of Good Words
        Published in a book 1882 (December), Why Frau Frohmann Raised Her Prices; and Other Stories, Wm Isbister
"The Lady of Launay"
        Written 1878 (18 March)
        Serialized 1878 (6 April - 11 May), Light
        Published in a book 1882 (December), Why Frau Frohmann Raised Her Prices; and Other Stories, Wm Isbister
"Alice Dugdale"
        Written 1878 (12 May - 10 June)
        Published 1878 (December), Good Cheer, Christmas Number of Good Words
        Published in a book 1882 (December), Why Frau Frohmann Raised Her Prices; and Other Stories, Wm Isbister
How the 'Mastiffs' Went to Iceland
        Written 1878 (June)
        Privately printed 1878 (October)
Ayala's Angel    (e-text)
        Written 1878 (25 April - 24 September)
        Serialized 1880 (6 November) - 1881 (23 July), Cincinnati Commercial
        Published as a book 1881 (May), Chapman and Hall
"Catherine Carmichael; or Three Years Running"
        Written 1878 (3 - 4 October)
        Published 1878 (November), Masonic Magazine, Christmas Number
        Published in a book 1882 (December), Why Frau Frohmann Raised Her Prices; and Other Stories, Wm Isbister
Cousin Henry
        Written 1878 (26 October - 8 December)
        Serialized 1879 (8 March - 24 May), Manchester Weekly Times & North British Weekly Mail
        Published as a book 1879 (October), Chapman and Hall
Marion Fay
        Written 1878 (23 December) - 1879 (21 November)
        Serialized 1881 (3 December) - 1882 (3 June), Graphic and Illustrated Sydney News
        Illustrated William Small
        Published as a book 1882 (May), Chapman and Hall
Thackeray
        Written 1879 (1 April - 25 March)
        Published as a book 1879, Macmillan
Dr Wortle's School
        Written 1879 (8 - 29 April)
        Serialized 1880 (May - December), Blackwood's
        Published as a book 1881 (January), Chapman and Hall
Kept in the Dark
        Written 1880 (18 August - 15 December)
        Serialized 1882 (May - December), Good Words
        Frontispiece John Everett Millais
        Published as a book 1882 (October), Chatto and Windus
The Fixed Period
        Written 1880 (17 December) - 1881 (28 February)
        Serialized 1881 (October) - 1882 (May), Blackwood's
        Published as a book 1882 (March), Blackwood
Mr Scarborough's Family
        Written 1881 (14 March - 31 October)
        Serialized 1882 (27 May) - 1883 (16 June), All the Year Round
        Published as a book 1883 (April), Chatto and Windus
Lord Palmerston
        Written 1881 (November) - 1882 (1 February)
        Published as a book 1882 (June), Isbister
An Old Man's Love
        Written 1882 (20 February - 9 May)
        Published as a book 1884 (May), Blackwood
"The Two Heroines of Plumplington"
        Written 1882 (June or by June)
        Published 1882 (December), Good Cheer, the Christmas Number of Good Words
The Landleaguers
        Written 1882 (June - November, in the midst when he died)
        Serialized 1882 (16 November) - 1883 (4 October), Life
        Published as a book 1883 (October), Chatto and Windus
"Not If I Know It"
        Written 1882 (9 August)
        Published 1882 Life, Christmas Number
 

Chronology from:  //www.jimandellen.org
Summaries from:  www.trollopeusa.html