I have yet to see a single example I'd be comfortable with owning, although I've certainly owned my share of Anderson autographs on other media.

Herman Hill is another one. He drowned during winter ball in 1970, and his rookie card is in the 1970 Topps set, so he certainly couldn't have that many in circulation. Also, someone mentioned Mike Miley. I grew up in Louisiana and had the chance to watch Miley as the quarterback for LSU. He was well loved in the state, so it could be that he signed a lot of cards for fans of him as a football player. Sadly, four LSU quarterbacks died in the 1967-1977 time frame including Miley, Butch Duhe, Carl Otis Trimble, and Trey Prather (who kept Terry Bradshaw on the bench in high school).