Date of Birth: 
About Henrik Dethloff
- Henrik Dethloff (4 April 1867 – 18 June 1925) was a Norwegian philatelist who was a specialist in the stamps of Norway. He was born in Kristiania, the son of merchant Frantz Heinrich Dethloff (1829–1894) and Johanne Andrea Mathilde Wang.
- He was the older brother of ophthalmologist Hans Gottfried Dethloff, and thus a brother-in-law of Elise Dethloff.Dethloff received the Crawford Medal, jointly with Justus Anderssen, from the Royal Philatelic Society London in 1925 for his work Postage Stamps of Norway, 1855-1924 (Norges Frimerker, 1855-1924).
- He died in June 1925 in Oslo.
Read more at Wikipedia