Thanks, jjper1!
Here are your 25 calendar dates:
February 23, 2016 - Bobby Bonilla
March 19, 2016 - Clayton Kershaw
March 22, 2016 - Joe Smith
March 24, 2016 - George Sisler
April 10, 2016 - Al Reyes
April 24, 2016 - Chipper Jones
May 5, 2016 - Chief Bender
May 20, 2016 - Bobby Murcer
May 22, 2016 - Al Simmons
June 6, 2016 - Bill Dickey
June 25, 2016 - Daniel Bard
July 10, 2016 - Buddy Groom
July 19, 2016 - Luis Avilan
August 3, 2016 - Harry Heilmann
August 18, 2016 - Jayson Durocher
August 20, 2016 - Todd Helton
September 3, 2016 - Eddie Stanky
September 15, 2016 - Gaylord Perry
October 29, 2016 - Will Venable
November 8, 2016 - Jeff Blauser
November 10, 2016 - Cy Morgan
December 7, 2016 - Johnny Bench
December 10, 2016 - Doug Henry
December 11, 2016 - Fred Toney
December 22, 2016 - Zach Britton