I since discovered Catherine and Denis and daughter Margaret living in Port Clarence in 1881 ...
Also, that daughter Ellen married a Patrick Martin and that Margaret married a John Fane (using the census to confirm birthdates). However, most of it seems to be confirmed by Ellen's obituary:
Daily Gazette for Middlesbrough December 3, 1894
FUNERAL OF MRS PATRICK MARTIN AT MIDDLEBROUGH.-On Saturday, the body of Mrs Martin, wife of Councillor Patrick Martin, of the Whitby Arms, Stockton-street, Middlesbrough, was interred at St. Joseph's Cemetery, North Ormesby. There was a large gathering of relaives and friends from Hartlepool, Darlington and Newcastle, now fewer than 57 cabs and carriages being requisioned to convey the mourners from Stockton-street to the Cemetery. Amongst those present were the husband of deceased, and his children; his brother, Mr Jno. Martin; deceased's brother and sister, Mr J. O'Brien and Mrs. Margaret Fane, Concillor Geo. Martin and Mrs Martin, Mrs John Mardon, Mrs M. Prior, Mr and Mrs J. Harrington, Dr. Webster, and Mrs. Bell. The body was enclosed in an oak coffin mounted with brass, and the hearse was filled with wreaths. The Rev. Fathers Wood and O'Connor performed the funeral service at the cemetery.
I think the MRS. BELL is the Gertrude Bell the famous author. I wonder who the other guests are. Thank you!
Thank you so much!