Hi Dave,
Unfortunately I don't have access to the 1851 Cencus but I had a wee look in the BVR's and although I couldn't find Jane, I might have found some relatives as there weren't many other Camerons listed for Aberfeldy round about 1850.
You'll see that there were two Catherine Camerons - one with no mother listed and the second with no father listed . . . . ?
I included Elizabeth as her father was a John Cameron too.
Catherine CAMERON
Date of Birth - not listed
Date of Christening: 13 Aug 1854
Recorded in: Aberfeldy, Perthshire, Scotland
Collection: Free Church
Father: John CAMERON
Mother - not listed
Catherine CAMERON
Date of Birth - not listed
Date of Christening: 24 Feb 1857
Recorded in: Aberfeldy, Perthshire, Scotland
Collection: Free Church
Father - not listed
Mother: Elizabeth CAMERON
Elizabeth CAMERON
Date of Birth - not listed
Date of Chrsitening: 20 Oct 1867
Recorded in: Aberfeldy, Perthshire, Scotland
Collection: Free Church
Father: John James CAMERON