Robert was born in 1914, the son of unknown parents. The place is not known.
He died in 1981. The place is not known.
His wife was Isobel (Isabella) Graham Caldwell. They were married, but the date and place have not been found. They had no known children.
!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