Hi,
checking my datas I found several Engaus to be my going up to 1470 or something. I found a certain Karl Wilhelm Friedrich Engau (* 13.10.1820 Jena/Thuringia/Germany not Hesse!) went by ship oversee to the Netherland Antillies and was never seen again. I am not sure if this is the one you are searching for, but I am willin gto help if you give me more details. Ragards
Hans-Volker Kurstedt