This site showcases some of the items from Dr. Mark Earl Bomia's spectacular collection of autographs of pre-1940 University of Michigan football players and coaches. Especially interesting are his autographs dating into 19th century.
I have never done business with this dealer, but he always seems to have many attractive offerings. Most interesting to me are the autographed items of players who had died prior to my start in collecting.
Located in Galena, Illinois. He bought the Richard C. Laade collection. I regard Laade as my mentor in football autograph collecting. I have many letters from Laade offering me helpful suggestions. Laade began collecting years before me and his collection is superb for the vintage players.