The names are fairly common in Ireland. You have Matthew Crilley born 1811 in Ireland, any idea where as you
mention later Peasley Cross,Greenbank, St. Mary Lowe House, St. Helen's - not found in place names in the Griffith Valuations for any county. It doesn't mean they don't exist just that I couldn't find them.
If they were from Northern Ireland = you are on the Co. Armagh message board you can find records if they exist on these websites:www.emeraldancestors.com
view for free, pay for recordswww.rootsireland.ie
- most of Ireland's counties are represented. You can search with just Matthew's name and the date of birth, if a baptism record exists then it will tell you what parish and county as well as parents names and mother's maiden name. This is also a pay website, a not for profit Foundation.www.genealogy.nationalarchives.ie
Tithe Applotments 1820-1839
There were Crilly's in the Parish of Creggan, Armagh in 1833. Creggan Parish is listed as a Church of Ireland/Protesant Parish and has no baptism records but
marriage records from 1845-1921
In those years in Ireland under british rule, the most dominant church was Protestant with chapels for RCwww.censusfinder.com
has explanations of both church and land divisions + other good information about Ireland.
Using their search a St. Helen's is named as an address is Buncrana, Donegal.