Humphrey Butler is recorded as one of the principal lessors in the parish of Kilnamanagh, barony of Frenchpark, at the time of Griffith's Valuation. He was a commander in the Royal Navy and a great grandson of Brinsley Butler, 1st Viscount Lanesborough. He is also recorded as owning over 2,800 acres in county Leitrim. In the 1870s the representatives of Humphrey Butler, with an address at Shedfield Lodge, Farnham, England, owned over 600 acres in county Roscommon. In 1877 the trustees of Humphrey Butler's marriage to Eliza Margaret Tewart were offering over 600 acres for sale in the barony of Frenchpark. The Irish Times reported that the bidding was considered insufficient and the sale adjourned.