Looking Fro Captain William Duke of County Cork Ireland

Capt. William (K. or L.)Duke of the Cork Steam Packet Company, Limited. William was a cousin to William Cunningham Dean-Tanner, a motion
picture director (b. 26 April 1872 Carlow, Ireland; murdered 2 Feb 1922 Los Angeles, California, USA - which remains one of the 20th century's most famous unsolved murders.).

My ancestor, Susan Duke, was William Duke's daughter. Susan was the eldest of 6 daughters. She was born 25 Dec 1849 in County Cork. Susan married Patrick Mahoney Dec 1862 County Cork, had a daughter Mary
b. 10 Dec 1865 County Cork, then the 3 of them entered NY, USA Aug 1869. Susan died 17 Sep 1924 Cheyenne, Laramie County, Wyoming, USA.