Background
Denny was the son of Reverend Barry Denny and Jane O"Connor.
Denny was the son of Reverend Barry Denny and Jane O"Connor.
He served in the Tralee Corps of the Irish Volunteers, becoming a colonel. He later gained the rank of Major in the service of the Kerry Militia. In 1774, he held the office of High Sheriff of Kerry.
He was created a baronet, of Castle Moyle in the Baronetage of Ireland on 12 January 1782.
Together they had eight children.
He was elected to the Irish House of Commons as the Member of Parliament for County Kerry, representing the seat between 1769 and 1776, and again between 1783 and 1794.