Hi again
If you are able to confirm these were his parents, this may be useful:
IGI births to John SABISTON & Margaret CRE(E)LMAN
Helen - Aug 1839
William - Jul 1841
John - Sep 1843
Margaret Ann - Aug 1848
This looks like Margaret in 1841 with her first child Hellen, and possibly a sister. Relationships not stated in UK 1841 Census, and ages rounded down.
1841: Stromness Orkney
Parish: 30, ED 11, Pg2
ADDRESS: Stromness
In the household are:
Ann LOUTITT 60 - Y
Janet LOUTITT 40,. Straw Plaiter - Y
Robert LOUTITT 25 - Mer S - Y (I am guessing Merchant Seaman???)
Mary CRULMAN 25, Straw Bonnet Maker - Y
Margaret CRULMAN 25, Straw Plaiting - Y
Helen SABISTON - Y No age - probably a baby under 12mths old.
(All born Orkney)
It was common to see married women in Scotland census using their maiden name - as a surname or as a middle name, and also for a widow to revert to her maiden name.
Cheers
AMBLY