John Avery Haldeman (December 2, 1855–September 17, 1899) was a journalist who played one game for Major League Baseball's Louisville Grays in the 1877 season.
جون هالدمان (بالإنجليزية: John Haldeman) (و. 1855 – 1899 م) هو لاعب كرة القاعدة من الولايات المتحدة الأمريكية ولد في بيوي. (ar)
John Avery Haldeman (December 2, 1855–September 17, 1899) was a journalist who played one game for Major League Baseball's Louisville Grays in the 1877 season. (en)