Hello Mandy,
I searched the 1901 Census for your ancestors. Could not find anything on Mc Culla but found the following on Bryans family in Ballyards. I also checked Kennedies which only had 8 families but none of your relatives:-
Form A page 21.
John Bryans, Head of family, C of I, Can read & write, Age 60, Stone Mason, married, Born County Armagh.
Anne Jane Bryans, wife, C of I, Can read & write, Age 70 (unclear, poor print) Married, Born County Armagh.
Margaret Bryans, daughter, C of I, Can read & write, Age 30, Bobbin Winder, not married, Born Co Armagh.
Elizabeth Bryans, daughter, C of I. Can read & write, Age 28, Damask ?worker (second word unclear)
I also found another Bryans family in Ballyards. Dont know if they are relatives but its a possibility so ill give you the information.
James Bryans, Age 70, Widow, Born County Down.
Eliza Bryans, daughter, Age 48, Not married, Damask Weaver, Born Co. Armagh
Mary Jane, daughter, Age 34, Damask Weaver, Not married, Born Co Armagh.
Mary ?Jane, grand daughter, Age 18, damask Weaver, Not married, Born Co Armagh.
Hope this information sends you along the correct pathway. I got this information at The Irish and Local Studies Library, Abbey St Armagh. They have the census on microfilm. You could email them for further help.
Noreen