1891 census that I mentioned earlier Callighan children Edward 13, Sarah 12, Mary A 8. It has these children as 'step' son & daughters of head of house Mark.
CALLAGHAN, EDWARD Mothers maiden surname MCCLUSKEY
1878 March Quarter in SOUTH SHIELDS Volume 10A Page 768
CALLIGAN, SARAH Mothers maiden surnameMCCUSKER
1879 June Quarter in SOUTH SHIELDS Volume 10A Page 754
CALLAGHAN, MARY ANN Mothers maiden surname MCCUSKER
GRO Reference: 1882 S Quarter in SOUTH SHIELDS Volume 10A Page 798
Plus other possibility
CALLAGHAN, ELIZABETH Mothers maiden surname MCCUSKEY
1880 Dec Quarter in SOUTH SHIELDS Volume 10A Page 695