Jan Gass is 5' 4".
Jan Ullrich is 6'.
Jan Kutrzeba is 6'.
Jan Harrelson is 6'.
Jan Kiepura is 6'.
Jan Leighton is 6'.
Jan Andres is 171 cm.
Jan Andreesen is 189 cm.
Jan Schuba is 175 cm.
Jan Roesler is 183 cm.
Jan Rose is 5' 1".
Jan Pomerans is 5' 9".
Jan Ohajsky is 190 cm.