For 1851:
Robert Mcindoe 59, Journeyman Hand Loom Weaver
Ellen Mcindoe 48 b. New Kilpatrick, Stirling
John Mcindoe 16
Robert Mcindoe 14
Jane Mcindoe 12
John Whyte 27, lodger
Frances Robertson 17, lodger
Address: 60 North St, Barony
I think Helen at least made it past the start of official registration in 1855 as she shows on the 1861 census (as transcribed):
Elen Mcindoo 60 b. New Shyistrick (?spl), Stirlingshire
Robert Mcindoo 24
John Salkerk 24, lodger
Address: 20 School Wynd, Anderston, Glasgow Barony
There is a likely death entry showing for her on the official pay to view site
www.scotlandspeople.gov.uk, indexed as Helen McIndoe/Greenhill. Her parents names should be included (if known to the informant).
Monica