Daniel Duggan was a son of John Duggan and Elizabeth Galvan.
Hannah Linehan was a daughter of Jeremiah Linehan

Daniel Duggan, a labourer of Coolcullitha and Hannah Linehan of Barna married on 6 November 1886 in the Catholic Church in Knockavilla.  The witnesses were Alexander Stephenson and Julia Toomey.  Extract from marriage register below.

Children born on dates on Civil Birth Register:

Hanora Duggan, 13 Sep 1887 @ Barna

Elizabeth Duggan, 24 Aug 1889 @ Ballyhandle

John Duggan, 9 Nov 1891 @ Coolanagh

Hannah Duggan, 15 Feb 1894 @ Scariff, Templemartin

Jeremiah Duggan, 4 May 1896 @ Tullig, Ballygarvan

Mary Duggan, 12 May 1898 @ Goggin's Hill

Daniel Duggan, 10 Aug 1899 @ Ballinacourty

Timothy Duggan, 18 June 1901 @ Coolkirky

Kathleen Duggan, 17 Feb 1903 @ Coolkirky

Census 1901:
http://www.census.nationalarchives.ie/pages/1901/Cork/Ballymartle/Coolkirky/1120290/

Death:
Daniel Duggan died on 30 April 1906 at Shinnagh.  From his death record he was married, aged 48 years, a labourer.  Present at his death and the Informant of it to the Civil Registrar was Hannah Duggan, widow of deceased, Shinagh.

Census 1911:
http://www.census.nationalarchives.ie/pages/1911/Cork/Kilbrogan/Shinagh/373570/

Death:
Hannah Duggan died in Boston on 27 June 1945.  She is buried in Saint Joseph Cemetery, West Roxbury, Suffolk. MA

Death announcement on The Boston Globe on 28 June 1945: