A possibility!
1881 Census, Trevethin within Pontypool (RG11, 5251, 34, 32)
John Donovan, Head, Married, 50, Road Labour, b Kilmordey Ireland
Mary Donovan, WIfe, 48, b Kilmordey
Elizabeth Donovan, Daughter, 9, Pontypool
Jeremiah Donovan, Son, 21, Clerk on Railway, Pontypool
Ellen Donovan, Mother, Widow, 78, Kilmordey
William Donovan, Son, 14, Scholar, Pontypool
Edward Donovan, Son, 4, Pontypool