He was the son of the Reading schoolmaster Richard Valpy. He is remembered in connection with two great undertakings in the department of classical literature. These were reissues of (1) Stephanus' Greek Thesaurus, for which E. H. Barker was chiefly responsible; and (2) the Delphin Classics in 143 volumes with variorum notes, under the editorial superintendence of George Dyer. He also founded the Classical Journal in 1810.
"England Births and Christenings, 1538-1975," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NR5X-TYF : 10 February 2018, Abraham John Valpy, ); citing item 3, index based upon data collected by the Genealogical Society of Utah, Salt Lake City; FHL microfilm 1,279,466.
"England and Wales Census, 1851," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:SGND-KTX : 8 November 2017), A J Valpy, St Marylebone, Middlesex, England; citing St Marylebone, Middlesex, England, p. 18, from "1851 England, Scotland and Wales census," database and images, findmypast (http://www.findmypast.com : n.d.); citing PRO HO 107, The National Archives of the UK, Kew, Surrey.
"British Newspaper Archive, Family Notices," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QLS7-VSBM : 18 March 2018), A J Valpy, United Kingdom; records extracted FamilySearch and images digitized by FindMyPast; citing United Kingdom, 25 Nov 1854, The British Newspaper Archive, Ireland; FHL microfilm .