Brockhaus-1809: Jason
Brockhaus-1911: Oval
DamenConvLex-1834: Jason
Eisler-1912: Rorario, Girolamo · Rorario, Girolamo · Fracastoro, Girolamo
Heiligenlexikon-1858: Jason, S. (3) · Jason, S. (4) · Jason, S. (5) · Jason, S. (1) · Jason, S. (2) · Girolamo, S.
Herder-1854: Oval
Meyers-1905: Jason · Ovāl
Pierer-1857: Jāson · Jason · Girolămo · Oval
Vollmer-1874: Jason