This post will hold the debut schedule for created players for the years 1871-80:
1871: Clifford Campbell (SS) - created by Nuk

1872: Walker Rhoades (P) - created by CatKnight

1873: Mike Feldbush (2B) - created by lewis31lewis52 (RETIRED AFTER 1874 SEASON - RETURNED IN 1876)

1874: Jim McGregor (SS) - created by tcblcommish

1875: Fred Morton (CF) - created by ifspuds

1876: Mahon "Mickey" O'Faolan (P) - created by canadiancreed

1877: Mark Madsen (P) - created by NYJuggalo45

1877: Titus Kelley (2B) - created by mjj55409

1878: William Hill (SS) - created by RoyalsBlue

1879: Harris Wendell (3B) - created by Sir Lurksalot

1880: Ryan W. Walinski (2B) - created by JayCobb
satchel73's special creations:
The Cuban Duo (a pair of Columbia University students from Havana, who decide to take a shot at professional base ball):
1872: Arturo Villaneuva (SS) - created by satchel73

1872: Cavetano Blanco (P) - created by satchel73

1873: John Mahoney

1876: Frank McGrath

1876: Solomon Cuffey
Other decades:
1880s|
1890s