This looks to be Patrick & family in 1901. His wife was born in Co. Antrim.
http://www.census.nationalarchives.ie/pages/1901/Down/Ards_Upper/New_Row/1232231/
Family in 1911:
http://www.census.nationalarchives.ie/pages/1911/Down/Portaferry/New_Row_Street/241574/
Patrick died 7.2.1913 at Derry, Portaferry, from exposure to the cold. There was an inquest. (The papers may be in PRONI).
http://www.census.nationalarchives.ie/pages/1911/Down/Portaferry/New_Row_Street/241574/
The couple married at St Pat’s in Belfast on 25.1.1886. Both had Belfast addresses, and Mary’s father was dead.
https://civilrecords.irishgenealogy.ie/churchrecords/images/marriage_returns/marriages_1886/10833/5951659.pdf
The on-line records for St Patrick’s only go to 1880. However the church should have later records. They might give both Thomas & Mary’s mothers names plus details of their parish of origin.
I also noted a death for Patrick Joseph McCallum aged 22, on 10.5.1913 at Knocknagow, Portaferry. Informant was his brother Frances McCallum also of Knocknagow.