NOVELS - Note: The only truly unabridged books are the Montgomery books published before the 1940s (and possibly 1950s) which used the text from the original plates. All reprints since then, especially paperbacks and current editions, appear to have used edited texts, in spite of claims printed on the inner pages of some of the books. The only original-text books published recently, to our knowledge, are The Blythes Are Quoted (the unabridged version of The Road to Yesterday) and Rilla of Ingleside, both published by Viking Canada, 2009 and 2010.
Dr. Benjamin Lefebvre is the editor of both of these books: "Yes, there are a number of differences between the Seal edition of Rilla of Ingleside and the Viking Canada edition Andrea McKenzie and I edited. The first Seal edition (with the cover in which Rilla looks a bit like a vampire) used the plates of the American Reprint Company edition, which had silently abridged the text by about 4% (about 4,500 words, or 20 pages) in the 1970s; the second Seal edition, the one that's still in print today, reset the same text. Our edition restores the full text of the original edition of 1921, makes a few corrections (including three made in Montgomery's hand in her personal copy), and includes bonus material that provides the kind of wartime context that readers would already have in 1921..."
Recommended reading: Dr. Elizabeth Waterston's Magic Island. "Waterston draws parallels between Montgomery's personal life, her professional career, and the characters in her novels."
See images of Montgomery's books, scrapbooks, and photography: Picturing a Canadian Life: L.M. Montgomery's Personal Scrapbooks and Book Covers
Read about the DEDICATIONS in her books The Shining Scroll 2012 (page 22)
Earliest publishers (see Collecting page):
Anne of Green Gables. 1908. L.C. Page and Company in Prince Edward Island, The Shining Scroll 2007
Anne of Avonlea. 1909. L.C. Page and Company The Shining Scroll 2009:1
Kilmeny of the Orchard. 1910. L.C. Page and Company The Shining Scroll 2005
The Story Girl. 1911. L.C. Page and Company
Chronicles of Avonlea. 1912. L.C. Page and Company The Shining Scroll 2012 1
The Golden Road. 1913. L.C. Page and Company The Shining Scroll 2013
Anne of the Island. 1915. L.C. Page and Company The Shining Scroll 2012 2
Anne's House of Dreams. 1917. McClelland, Goodchild, and Stewart. Frederick A. Stokes
Rainbow Valley. 1919. McClelland and Stewart. Frederick A. Stokes Montgomery and WW1
Further Chronicles of Avonlea. 1920. The Page Company
Rilla of Ingleside. 1921. McClelland and Stewart. Frederick A. Stokes Montgomery and WW1
Emily of New Moon. 1923. McClelland and Stewart. Frederick A. Stokes
Emily Climbs. 1925. McClelland and Stewart. Frederick A. Stokes
The Blue Castle. 1926. McClelland and Stewart. Frederick A. Stokes Creation of The Blue Castle: Muskoka Dream
Emily's Quest. 1927. McClelland and Stewart. Frederick A. Stokes
Magic for Marigold. 1929. McClelland and Stewart. Frederick A. Stokes
A Tangled Web. 1931. McClelland and Stewart. Frederick A. Stokes The Shining Scroll 2004
Pat of Silver Bush. 1933. McClelland and Stewart. Frederick A. Stokes
Courageous Women. 1934. McClelland and Stewart
Mistress Pat. 1935. McClelland and Stewart. Frederick A. Stokes
Anne of Windy Poplars. 1936. McClelland and Stewart. Frederick A. Stokes
Jane of Lantern Hill. 1937. McClelland and Stewart. Frederick A. Stokes
Anne of Ingleside. 1939. McClelland and Stewart. Frederick A. Stokes
The Blythes Are Quoted. 2009. Viking Canada
more titles at http://lmmonline.org/books/ and http://lmmonline.org/book-length-studies/
Later Short Story collections
The Road to Yesterday. 1974. McGraw-Hill Ryerson
The Doctor's Sweetheart and Other Stories. 1979. McGraw-Hill Ryerson
Akin to Anne. 1988. McClelland and Stewart
Along the Shore. 1989. McClelland and Stewart
Among the Shadows. 1990. McClelland and Stewart
After Many Days. 1991. McClelland and Stewart
Against the Odds. 1993. McClelland and Stewart
At The Altar. 1994. McClelland and Stewart
Across the Miles. 1995. McClelland and Stewart
Christmas with Anne. 1995. McClelland and Stewart
AFTER MANY YEARS: TWENTY-ONE “LONG-LOST” STORIES BY L. M. MONTGOMERY. 2016. L.M. Montgomery Institute, 2017 Nimbus Publishing
AROUND THE HEARTH. 2021 and 2022 (Nimbus). Ed. by Joanne Lebold (17 stories written by Lucy Maud Montgomery and discovered in 1986 by the late Rea Wilmshurst, self-published by Lebold).
LETTERS
The Green Gables Letters from L.M. Montgomery to Ephraim Weber, 1905–1909. 1960. The Ryerson Press
My Dear Mr. M: Letters to G.B. MacMillan from L.M. Montgomery. 1980. McGraw-Hill Ryerson
After Green Gables: L.M. Montgomery's Letters to Ephraim Weber. 2006. University of Toronto Press
The Green Gables Letters from L.M. Montgomery to Ephraim Weber, 1905–1909. 1960. The Ryerson Press
My Dear Mr. M: Letters to G.B. MacMillan from L.M. Montgomery. 1980. McGraw-Hill Ryerson
After Green Gables: L.M. Montgomery's Letters to Ephraim Weber. 2006. University of Toronto Press
JOURNALS
The Selected Journals of L.M. Montgomery, Vols. 1,2,3,4,5. 1985, 1987, 1992, 1998, 2004. Oxford University Press
The Complete Journals of L.M. Montgomery, The P.E.I. Years, Vols. 1,2. 2012, 2013. Oxford University Press
L.M. MONTGOMERY’S COMPLETE JOURNALS: . Edited by Jen Rubio. Rock’s Mills Press, 2019.
Read more on the BIOGRAPHY page
The Selected Journals of L.M. Montgomery, Vols. 1,2,3,4,5. 1985, 1987, 1992, 1998, 2004. Oxford University Press
The Complete Journals of L.M. Montgomery, The P.E.I. Years, Vols. 1,2. 2012, 2013. Oxford University Press
L.M. MONTGOMERY’S COMPLETE JOURNALS: . Edited by Jen Rubio. Rock’s Mills Press, 2019.
Read more on the BIOGRAPHY page
POETRY
The Watchman and Other Poems. 1916. McClelland, Goodchild, and Stewart.
The Watchman and Other Poems. 1917. Frederick A. Stokes
The Poetry of Lucy Maud Montgomery. 1987. Fitzhenry and Whiteside.
A World of Songs: Selected Poems, 1894–1921 is a collection of fifty poems by L.M. Montgomery that is edited by Benjamin Lefebvre.
More titles at http://lmmonline.org/posthumous-books/