The Letter M, Sheet 3 and Trea Turner is the Padres first round draft pick

Julius Matos, 2002 Upper Deck SPx; Julius played in 76 games for the Padres in 2002.
Gary Matthews, Jr., 1999 Upper Deck SP Signature; Gary played in 126 games for the Padres in 1999 and 2003.
Mike Matthews, 2003 Keebler; Mike pitched in 77 games for the Padres in 2003.
Tim Mauser, 1994 Topps; Tim pitched in 68 games for the Padres from 1993 to 1995.
Darrell May, 2005 Topps Total; Darrell pitched in 22 games for the Padres in 2005.
Cameron Maybin, 2011 Padrographs; Cameron has played in 327 for the Padres from 2011 until today.

 Cumulative Count
Cards-462
Players-424
Executives-5
Hall of Famers-5
Coaches-22
Sets of Brothers-6
Father/Son Combo-1
Trainer-1
Didn't play for the Padres-78
Letters done-12
Letters left-14