Hi Mary.Found Isabella's family in 1881 as follows-
Haughmill, Markinch Fife
Janet Beveridge age 48
Ellen age 25 mill worker
Janet age 23 mill worker
William age 19 bleachfield worker
Marion age 16 mill worker
Isabella 14 at school
Alexander 12 at school
Thomas 8
Jane Currie 26 boarder
Janet Currie 4 boarder
1871 Kelty Beath Fife
William Beveridge 46 coalminer b Dunfermline
Janet 39 b Kirkaldy
Helen 16 b Airdrie
Janet 14 b Kirkaldy
William 9 b Auchterdarren
Marion 6 b Armadale Linlithgow
Isabella 3 b Falkirk
Alexander 2 b Beath Fifeshire
Hope this helps. Best wishes Julie