Couple of baptisms in Sunderland
Margarita McManus born 4 Jan 1862
https://www.familysearch.org/ark:/61903/1:1:NLZT-4GMMaria McManus, born 11 Feb 1865
https://www.familysearch.org/ark:/61903/1:1:JQKB-22QBirths of those two
MCMANUS, MARGARET
Mother's Maiden Surname: DIGNAN
GRO Reference: 1862 M Quarter in SUNDERLAND Volume 10A Page 416
MCMANUS, MARY
Mother's Maiden Surname: DIGNAN
GRO Reference: 1865 M Quarter in SUNDERLAND Volume 10A Page 469
I think Margaret died not long after
Is Patrick sometimes recorded as John McManus in the census?
He seems to be in 1871
There is a daughter Elizabeth A, 4, born Ireland
1881 at 25 Spring Garden Lane (he is Patrick this time!)
Eliza A McManis, 14, born Ireland
Here's the birth reg of Eliza Anne McManus
Born 10 Jan 1867 in Carrowcashel in the parish of Kilmactranny, Sligo
https://civilrecords.irishgenealogy.ie/churchrecords/images/birth_returns/births_1867/03493/2283676.pdfInformant Anne Dignan, present at birth.
In the 1881 census at 22 Spring Garden Lane, Margaret Dignon, 63, born Ireland, daughter Ann Dignon, 25, born Sunderland. A servant, Mary McManis, 17, born Sunderland.
Any connection?
Is it the same Mary we see with Patrick and Catherine further down the page? (I may be being silly!)
I agree with Boo that the marriage certificate is the way to go.
I haven't been asked, but it is in the registrar's book (or one of them!) Only the cert will tell you if it was at the RO, or at a non parish church place of worship (presumably catholic) with a registrar in attendance.