found: Halporn, B.C. Johann Amerbach's collected editions of St. Ambrose, St. Augustine and St. Jerome, 1988:leaf 24 (b. prob. 1441, son of Peter Welcker) leaf 26 (appears in the Basel records as "Hans von Venedig" up until 1490)
found: Dict. historique et biog. de la Suisse, 1921(Amerbach, Johannes; b. 1430; d. 1513)
found: Meyers enzyklop. Lexikon, 1971(Amerbach, Johannes, really prob. Johannes Welcker; b. ca. 1440(?), d. 12/25/1513)
found: Brockhaus Enzyklop., 1986(Amerbach, Johannes, printer; b. ca. 1440; d. 12/25/1513)
found: Dtscher biog. Index, 1986(Amerbach, Johann, also Ammerbach)
found: Webster's biog. dict., 1966(Amerbach, Hans, 1444-?1513)
found: Meyers neues Lex., 1972(Amerbach, Johann; b. ca. 1445)
found: NDB(Amerbach, Johannes; b. ca. 1440, very prob. identical with Johannes Welker)
found: Epistolare Marii Philelfi, 1489:colophon (... Ioannem De Amerbach)
found: His The correspondence of Johann Amerbach, c2000.
found: Proctorp. 543 (Basel: Johann, of Amorbach)
found: Darlow & Mouleindex III (Amerbachius or de Amerbach, Johannes)