Major Michael Grahame Dewey was born on 15 January 1928. He married Anne Cecilia Boylan daughter of Brigadier Edward Thomas Arthur George Boylan and Eileen Mary Frances O'Brien, on 24 April 1954. He died on 20 June 1973 at age 45, as the result of a motor accident.
He was the son of Major Hugh Grahame Dewey and Marjorie Florence Isobel Dodds . He was educated at Wellington College, Wellington, Berkshire, England. He gained the rank of Major in the service of the Queen's Own Hussars.
Children of Anne Cecilia Boylan and Major Michael Grahame Dewey
1. Philippa Mary Dewey b. 31 Aug 1955
2. Amanda Julia Dewey b. 7 Mar 1957
3. Christopher Grahame Dewey b. 3 Jul 1963
. Hugh Montgomery-Massingberd, editor, Burke's Irish Family Records (London, U.K.: Burkes Peerage Ltd, 1976), page 161. Hereinafter cited as Burke's Irish Family Records.
. Hugh Montgomery-Massingberd, Burke's Irish Family Records.
. Charles Mosley, editor, Burke's Peerage, Baronetage & Knightage, 107th edition, 3 volumes (Wilmington, Delaware, U.S.A.: Burke's Peerage (Genealogical Books) Ltd, 2003). Hereinafter cited as Burke's Peerage and Baronetage, 107th edition.</p>4. Charles Mosley, Burke's Peerage and Baronetage, 107th edition, volume 1, page 1136.