Isaiah was born about 1836, the son of unknown parents. The place is not known.
His wife was Rebecca Bowater. They were married, but the date and place have not been found. Their only known child was Rebekah (1861-?).
!Source: http://www.jaap.fsnet.co.uk/Webnew/Jaapwebnew.html The Jaap family tree. Entries: 2488, Updated: Sun Feb 29 09:17:00 2004, Contact: John Jaap