Did Elizabeth Cameron died before 1855? Can't easily see a death entry for her so far.
This looks like her with her sister in 1851 www.freecen.org.uk/search_records/5a14cf07f4040b9d6ed363e4/elizabeth-hitch-1851-inverness-shire-inverness-1800-?locale=en
Do you have her parents' names?
Monica
Yes, Margaret is Elizabeth's sister. Elizabeth, along with Maria (married name Paterson) & Margaret (married name McBean) moved to Canada and the US it seems for Margaret & Angus McBean. I can't find any death record for Elizabeth as yet. Nor for Maria or Margaret.
The names of Elizabeth's, and Margaret's, parents I have from another Ancestry tree as James & Margaret Fletcher but I am not sure if it is accurate. There was a Robert Cameron who also worked at Dochfour and I wonder if Elizabeth is related to him and it may be how she met William, a butler at Dochfour. A few surmises there.
Kirst
I think the parents are Finlay Cameron and Margaret MacDonald based on the 1841 Census where it names Finlay Cameron,70, and Margaret Cameron, 50, as living at the Address of Charleston. In the 1851 Census it notes Head, Margaret Cameron, and Sister, Elizabeth Hitch at the address of Charleston Cottages. It seems Finlay died in 1850 and was buried at Lochend Cemetry.
Robert's, born 1802, working at Dochfour, parents noted as Finlay Cameron and Margaret MacDonald. Also likewise for a Ewen Cameron born 1797. Still some gaps but some things seem to point in the same direction.
Also a Finlay Cameron was a witness at two baptisms, that of Margaret Cameron 1846:
"Additional information Witnesses: Alex Mcpherson & Finlay Cameron. Residence Dochfour. Father's occupation Carpenter. Father's first name Robert. Father's last name Cameron. Mother's first name Rachel. Mother's last name Kennedy." Possibly a brother or father of Robert.
And for that of William Henry Hitch 1832:
"Father Occupation Servant.
Residence Dochfour.
William Hitch (Servant with Bailie of Dochfour) & his wife Elizabeth Cameron (alias) MacMillan had a child baptised by Rev. Charles Fyvie named William Henry.
Witnesses John Cameron and Findlay Camer"
I'm not sure on where the (alias) MacMillan fits in.