Rector at Staplestown, County Carlow, Ireland, formerly an Indian cavalry officer.
Epitaph: "Sacred to the Memory of the Revd FREDERIC FITZJOHN TRENCH Rector of Staplestown who departed this life suddenly in the 51st year of his age at the Rectory on the 25th day of June 1859. He has been ten years Rector of Carlow and only ten months Rector of this parish. He was a faithful Minister of Christ and was loved and respected by all who knew him. He had just chosen as a text for his sermon to be preached the next day those striking words "Be ye also patient, stablish your hearts, for the coming of the Lord draweth nigh’ James 5. 7, 8. ‘He was not for God took him’ Gen. 5.24. Mark 13.33."