There were around 11 Preston families in 1881 IoM census but only Catharine in 1870's is in:

Braddan CUBBON James Ballacrink Head M 60 Farmer Of 40 Acres born Patrick IoM
Braddan CUBBON Elizabeth Ballacrink Wife M 55 ((Farmers Wife)) Braddan IoM
Braddan CUBBON James Ballacrink Son U 22 Farmers Son Onchan IoM
Braddan CUBBON Catherine Ballacrink Daur U 19 Farmers Daur Onchan IoM
Braddan CUBBON Hannah Ballacrink Daur U 17 Farmers Daur Onchan IoM
Braddan COTTLE John Edw. Ballacrink Grandson - 10 Scholar Douglas IoM
Braddan PRESTON Catherine G. Ballacrink Granddaur - 3 --- Douglas IoM