Thomas McManus, cabinet maker

[AncesStory]

Searching for information about Thomas McManus c 1811-78 (and family,) an Irish cabinet maker living at Stevenlaw's Close, Edinburgh, Midlothian, who was  married to Anne O'Brien, also born in Ireland, c 1809, who died in Edinburgh Canongate, 1883.

1851 census: 685/1Parish: Edinburgh New North; ED: 2; Page: 6; Line: 20; Roll: CSSCT1851_178; Year: 1851
1871  census: 685/4 Parish: Edinburgh New North; ED: 20; Page: 9; Line: 18; Roll: CSSCT1871_163

1878: death certificate of Thomas McManus, age 67, names parents as James McManus, mason, deceased, and Catherine McManus, (M.S. Duffy), deceased.
1883: death certificate of Ann McManus nee O'Brien, age 74, names parents as Francis O'Brien, stockingmaker, and Ann McGee.
Hoping I can catch a break and find out where this McManus family originated from in Ireland?
Many thanks.