John Cullinane was a son of Jeremiah Cullinane, a shopkeeper
Margaret Murphy was a daughter of Denis Murphy and Mary Ann Martin, a builder

John Cullinane a Draper, and Margaret Murphy married in the Catholic Church in Bantry on 7 January 1872.  The marriage witnesses were William Murphy and Mary Murphy.

                                     Extract from Marriage Register

They did not have children

Death:
John Cullinane died at The Square, Bantry on 11 January 1900.  From his death record he was married, aged 66 years, a merchant.  Present at his death and the Informant to the Registrar was A O'Rourke, The Square, Bantry.

Census 1901:  Margaret is listed as an aunt visitoe in the house of William Lombard Murphy
http://www.census.nationalarchives.ie/pages/1901/Dublin/Rathmines___Rathgar_East/Dartry_Road/1292013/

Census 1911:  Margaret is an aunt of Edward Martin Murphy
http://www.census.nationalarchives.ie/pages/1911/Dublin/Rathmines___Rathgar_West/Dartry_Road/65011/
 

Death:
Margaret Cullinane died on 3 April 1936 at Dartry House, Rathmines, Dublin.  From her death record she was a widow, aged 93 years, widow of a merchant.  Present at her death and the Informant to the Registrar was Mary O'Brien, Dartry House, Rathmines, Dublin.