After two Cleveland performances at the Colonial Theatre on January 1–2, 1917 titled Hearts of Erin, the operetta moved on to Boston, changing its name to Eileen.

In 1982, a single on-book concert performance was given at Manhattan's Town Hall, featuring E. G. Marshall as O'Day, Judy Kaye as Lady Maude and Roderick Cook as Sir Reginald.

Alexander Woollcott wrote: "Mr Blossom [must have] gathered his material and atmosphere by reading for quite half an hour in some public library.

Shaun Dhu leads a band of smugglers and revolutionaries on the Western coast of Ireland that includes Barry O'Day, son of a legendary Irish rebel.

The band stores its loot at Biddy's Black Bull Inn in an effort to avoid nasty British tax collector Humpy Grogan.

Nevertheless, Maude decides to help Barry escape again from the Colonel by putting a coachman's uniform on her guest, Sir Reggie, making him a decoy.

The Ohio Light Opera revived and recorded the musical in 1997, adapted by Quade Winter from Herbert's manuscripts, held in the collection of the Library of Congress (Newport Classics NPD 85615/2, double CD, 1998).