After graduating from the University of Michigan and Georgetown University Law School , followed by a degree in international relations from Harvard University , Quinn became a successful New York lawyer , getting involved in New York ’s Tammany Hall politics , but when his candidate did not get the nomination at the 1912 Democratic National Convention he became disgusted with the whole system and became an art patron , art collector , and collector of manuscripts . His French adviser for Post-Impressionist art was Henri-Pierre Roche , who later wrote the novel '' Jules et Jim '' . Quinn and Roche worked together to develop the famous 1913 Armory Show
1912 Democratic National Convention
1912 Democratic National Convention
John Quinn (collector)