John David Gwynn was a civil engineer with a special interest in renewable energy generation. In his youth he was one of Ireland's most distinguished cricketers.
John David Gwynn
Edward John Gwynn was an Irish academic who served as the 36th Provost of Trinity College Dublin from 1927 to 1937. He was also President of the Royal Irish Academy from 1934 to 1937. Professor Gwynn was a scholar of Old Irish and Celtic literature.
Letter written by Edward Gwynn to his daughter in law, 1939
Edward Gwynn as a young man, c.1888
Edward Gwynn with his son Harold, 1913
Edward Gwynn with family members, c.1923