Jeremiah Sullivan was a son of Cornelius Sullivan and Ellen Donovan.

 Jeremiah Sullivan's first marriage to Julia Mahony 

Julia Mahony was a daughter of Denis Mahony and Mary White.

Jeremiah Sullivan of Ardcahan and Julia Mahony of Thoam married in the Catholic Church in Dunmanway on 1 March 1908.  The marriage witnesses were Cornelius O'Sullivan and Ellie Mahony.

Extract from Marriage Register

Children born at Ardcahan on dates on Civil Birth Register:

Ellen Sullivan, 16 Dec 1908

Mary Sullivan, 1 October 1910

Death:
Julia Sullivan died at Ardcahan on 1 November 1910.  From her death record she was married, aged 31 years, a farmer's wife.  Present at her death and the Informant of it to the Civil Registrar was Richard White, her cousin.

Census 1911:
http://www.census.nationalarchives.ie/pages/1911/Cork/Aultagh/Ardcahan/409293/

 Jeremiah Sullivan's second marriage to Ellen Donovan 

Jeremiah Sullivan, a widower of Ardcahan and Ellen Donovan of Derrynasafa married on 11 February 1915 in the Catholic Church in Dunmanway, the witnesses were John Hennessy and Mary McCarthy.

Extract from Marriage Register

Children born at Ardcahan on dates on Civil Birth Register:

Cornelius Sullivan, 2 May 1916

Kate Sullivan, 3 Nov 1917

Margaret Sullivan, 1 Sep 1919.  Margaret married Denis O'Driscoll and lived in Enniskeane. she died 2 July 2014

Death:
Jeremiah Sullivan died at Ardcahan on 28 April 1933.  From his death record she was married, aged 60 years, a farmer.  Present at his death and the Informant of it to the Civil Registrar was Norah Burns of Ardcahan.