
Schwäbisch-russischer Wasserbauingenieur
Johann Conrad Gerhard (* 13. May 1720 in Swabia; † 8. June 1808) was a schwäbisch-russischer Wasserbauingenieur. He was 88 years old. He had at least 1 child (1 son). His awards include Order of St. Vladimir, 3rd class and Order of Saint John of Jerusalem.