Andrew Upton
Andrew Upton( born 1 February 1966) is an Australian playwright, screenwriter, and director.
He is the husband of actress Cate Blanchett.
Jon Leach
Jonathan Leach( born April 18, 1973) is a former professional tennis player from the United States.
He is the husband of Lindsay Davenport.
Gerard Casey (philosopher)
Gerard Casey( born 1951) is an Irish academic who is Professor Emeritus at University College Dublin.
Seán O'Casey
Seán O'Casey (born John Casey; 30 March 1880 – 18 September 1964) was an Irish dramatist and memoirist.
A committed socialist, he was the first Irish playwright of note to write about the Dublin working classes.
Stan Marks
Stan Marks is an Australian writer and journalist.
He is the husband of Holocaust survivor Eva Marks.
Mark Casey (footballer)
Mark Charles Casey( born 9 October 1982) is a Scottish former professional footballer.
Eileen O'Casey
Eileen O'Casey (27 December 1900 - 9 April 1995) was an Irish actress, author, and wife of Sean O'Casey.
She used the stage name Eileen Carey.
James Randall Marsh
James Randall Marsh( 1896- 1965) was an American artist and the husband of Anne Steele Marsh.
Amie Casey
Amie Casey( born 8 September 1990) is an Australian actress and producer.
Stan Rice
Stan Rice( November 7, 1942 – December 9, 2002) was an American poet and artist.
He was the husband of author Anne Rice.

Question: What is the place of birth of Eileen O'Casey's husband?
Answer: Dublin