James Sweeney was a son of James Sweeney
Ellen Brien was a daughter of Timothy Brien and Ellen

James Sweeny (26), a sailor, and Ellen Brien (18), a school teacher, married on 2 May 1876 in the Catholic Church in Myross, Co. Cork.  The marriage witnesses were James Sweeney and Mary H Collins.

Children born on dates shown on State Birth Register:

Michael James Sweeney, 15 Sep 1877

John Sweeney, 5 Feb 1880

Kate Agnes Sweeney, 17 Jul 1882

Charles Sweeney, 22 Nov 1886

Mary Sweeney, 1 May 1889

Patrick Sweeney, 13 Sep 1891

Peter Sweeney, 13 Jan 1899

Stephen Sweeney, 10 Aug 1900

Sylvia Bridget Sweeney, 31 Dec 1904

Census 1901:
http://www.census.nationalarchives.ie/pages/1901/Cork/Myross/Clontaff/1157729/

Census 1911:
http://www.census.nationalarchives.ie/pages/1911/Cork/Myross/Unionhall_Town/443704/

Deaths:
James Sweeney died at Union Hall, Myross on 31 August 1914.  From his death record he was married, aged 68 years, a fisherman.  Present at his death and the Informant to the Registrar was Mary Sweeney, his daughter.
Ellen Sweeney died on 23 April 1930 at Union Hall, West Cork.  From her death record she was a widow, aged 68 years, a merchant sailor's widow.  Present at her death and the Informant to the Registrar was Sylvia Sweeney, her daughter.