Lothar Schmid became an IM in 1951 and a GM and GMC in 1959. He was the head arbiter in several WCHs inc Fischer-Spassky 1972. He played for W Germany in 11 Olympiads, winning 4 silver medals and 2 bronze team medals. He owned the largest private chess library in the world with +50,000 volumes ranging from original publications by Lucena in 1497 to contemporary chess newsletters from the Phillipines.
He recently passed away at age 85. Here's a link to a interesting article about him http://www.chessbase.com/Home/TabId/211/PostId/4009866/lothar-schmid-19282013-200513.aspx
Checkmating Alzheimer's Disease: http://www.chessbase.com/Home/TabId/211/PostId/4009870/checkmating-alzheimers-disease-200513.aspx
An endless supply of chess biography, history and trivia http://www.chesshistory.com/winter/index.html
What does "en prise" really mean? http://www.chesshistory.com/winter/extra/enprise.html
Is Chess A Sport?http://www.chessbase.com/Home/TabId/211/PostId/4009913/vik-hansen-is-chess-a-sport-240513.aspx
Winter's site is definitely the place to go for accurate information on historical chess events and players.
But WARNING: he busts many of the common myths outright.