Thank you for your replies Pauline & Silvery. That could be the marriage as my grandpa was born in 1896. I'll send for his certificate as I've just found the ref. for that.
This is what I found on the 1881 & 1891 census.
1881 census - household transcription
Person: GOLIGHTLY, George
Address: 1 Dundas St, Monk Wearmouth Shore
GOLIGHTLY, John Head Married M 28 1853 Puddler In Ironworks born Ireland
GOLIGHTLY, Elizabeth Wife Married F 25 1856
GOLIGHTLY, George Son Single M 7 1874 Scholar
GOLIGHTLY, Annie Daughter Single F 5 1876 Scholar
GOLIGHTLY, Mary Daughter Single F 3 1878 Scholar
GOLIGHTLY, John Son Single M 0 1881
1891 census - household transcription
Person: GOLIGHTLY, George William
Address: 15, Vine Street, Sunderland
GOLIGHTLY, John Head Married M 42 1849 Driller
GOLIGHTLY, Mary Jane Wife Married F 35 1856
GOLIGHTLY, George William Son Single M 16 1875 Slater Apprentice
GOLIGHTLY, Richard Son M 14 1877 Apprentice Rivetter
GOLIGHTLY, Sarah An Daughter F 12 1879 School
GOLIGHTLY, Jane Daughter F 10 1881 School
GOLIGHTLY, Millicent Daughter F 3 1888
Everyone except the first John was born in Sunderland.