John Harry Robson Lowe, Robbie to his friends, was a professional philatelist, stamp dealer and stamp auctioneer. He is regarded by philatelists as the father of postal history, having published many definitive works on the subject and having introduced the term in his first major book "Handstruck Postage Stamps of the Empire 1680-1900" in 1948. Wikipedia
The definitive Wikipedia entry for Robson Lowe. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Robson_Lowe