Born 8 January 1864 in Pennsylvania, the son of Edward and Sarah Catherine Glenn, British subjects. Glenn had a distinguished military career both in America and in Britain. By 1903 he was a Lieutenant-Colonel in the American army, but he resigned from the U.S.A. services in 1905 and came to reside in Wales. He served as an officer in World War I and held a commission in the Home Guard in World War II. As an author he had an American period and a Welsh period, during both of which his genealogical works are noteworthy. After he came to live in Wales (at Newmarket, Meliden, Prestatyn, and, last of all, at Abergele) he shared his labours between archaeology (he was prominently connected with the Dyserth and District Field Club and the Cambrian Archaeological Association) and the history of some of the older Welsh families. In the latter work he was particularly skilled, for he was a tireless searcher into original records and a careful copyist. In addition, he possessed considerable ability as an amateur artist, as attested by his work in making armorial shields, etc.
Glenn married, 1904, Meenie Mary, daughter of Robert H. and Jessie Tothill; they had two daughters. He died at Abergele, 30 January 1948; his widow died 4 September 1949.
Besides articles in periodicals (Archaeologia Cambrensis, etc.) Glenn was the author of several books and monographs including Merion in the Welsh Tract … [Pennsylvania] (Norristown, 1896); Some colonial mansions and those who lived in them (Philadelphia, 1st series, 1899, 2nd series, 1900); Welsh Founders of Pennsylvania, 2 vols., (Oxford, 1911); Newmarket notes (Prestatyn Hundred, Flintshire), Parts 1 & 2 (Prestatyn 1911, 1912); Northern Flintshire, historical, genealogical and archaeological, Vol. I, Parts 1-3 (Horncastle, 1913); (with Lord Mostyn), History of the Family of Mostyn of Mostyn (1925); The Family of Griffith of Garn and Plasnewydd in the County of Denbigh (London, 1934).
Published date: 2001
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