[3] Writing under the pen name of "Elizabeth Connor",[4][5] she began her career in 1936 with the publication of the novel Mount Prospect, which was banned in the Irish Free State.
The protagonist, John Davern, was based on the character of IRA revolutionary idealist George Lennon of West Waterford.
[9] Kirkus Reviews described her 1959 novel The Other End of the Bridge as "Funny in its presentation but not in its intent," adding that Troy "points up universal problems in microcosm, and stirs its Irish stew with a sturdy ladle.
It was shown at the Museum of Modern Art in New York in 2005, as part of an international film preservation festival.
[15] In 1931, Una Troy married Joseph C. Walsh of Bonmahon, who served as physician to the Irish Republican Army (IRA),[24] and later as a coroner.