Such a lot of information flowing on this family, Wow, you have been busy Rosie!
Maggie, I didn't realise that you're in Au, so you probably already have info on Helen, however her Will from prov vic fills in some of the gaps. Their site can be a bit cumbersome to use, send me your e-mail in a PM should you want the two pdf files forwarded.
The gist of the Will is that Helen died Intestate. Probate was granted to the son, Henry McIntosh Christie of Welshpool, Farmer. Helen Christie’s other children were Robert Christie of Deptford, England; George Christie of London, England; William O Christie of Brunswick, Victoria, and Isabella Moncrieff of Kanowna WA. Helen’s husband, Robert Christie having died in Scotland in 1882
http://prov.vic.gov.au/index_search?searchid=54Henry M Christie, Overseer of Welshpool, Vic died 30 Apr 1949. From the
Argus, Melbourne, 9 June 1949:
HENRY MCINTOSH CHRISTIE, Late of Welshpool. Retired Overseer. Deceased. -After 14 clear days THE TRUSTEES' EXECUTORS AND AGENCY COMPANY LIMITED, of 401 (formerly of 412) Collins street, Melbourne, the sole executor appointed by deceased's will, dated the 24th September 1936 will APPLY to the Supreme Court for a grant of PROBATE of the said WILL.
William Ogilvie Christie married Martha Jane Pugh 26 Oct 1892, Melbourne; occupation given as Compositor; died 25 April 1946; 9 children
Robert Christie became a Gun maker / Engineer in Deptford, 1901 and a foreman in an Electric Switch making shop in Solihull, 1911. His wife, Sarah, died before 1911; one daughter
George John Christie moved first to Glasgow, then to Blackheath, SE London where he worked as an Accountant. His wife was Mary; one son; one stepdaughter
Isabella Mary Ogilvie Christie married Charles Moncrieff 1 Jan 1897, she died 1915 in NE Coolgardie, buried Kanowna, WA; 9 children