This is a Message Board Post that is gatewayed to this mailing list. Surnames: Decker Classification: Query Message Board URL: http://boards.ancestry.com/mbexec/msg/an/hgR.2ACIB/1782.2.1.1.1 Message Board Post: Hi Sally, I don't have any sister named Mary for Isaac (b. 1794). The only Mary Deckers that I came across have the birth dates of 1835, 1865, 1896 and an unknown. The Mary Decker whose birthdate is unkown was married to Tobias Hull. I'm sorry I couldn't help. Good luck. Alison