Doing a quick look at the top seven teams of the 1875 NA (the ones around all year) and the 8 teams of the 1876 NL, the starters of the NA were basically the starters of the NL. Few starters didn't make it to the new league, but a fair number of subs seem to have moved. Maybe a half-dozen starters didn't cross over (and Cap Anson moved from bench to starting), and about 27-28 backups from those seven teams didn't. In terms of playing time, I wouldn't be surprised if 85-90% NA players in the first year of the NL was on the mark. How much you count the guys from the teams that didn't play all season will affect your results. FWIW, there were 65-70 starters (no more than 2 pitchers would qualify per team in those days) and about 101 players overall considered from baseball-reference.com.
Last edited by jalbright; 06-27-2009 at 09:22 AM.
Seen on a bumper sticker: If only closed minds came with closed mouths.
RIP Harry Kalas. Thanks for 38 great years, though I wish we could have had more.