Background
He was the only surviving son of Sir George Street George of Dunmore, and first cousin of George Street George, 1st Baron Street George. In June 1686 he married Anne, daughter of Colonel John Eyre of Eyre Court. They had no children and she died in November 1719.
Career
In October 1711 he succeeded to his father"s estates in County Galway and on 23 November 1715 he was appointed to the Privy Council of Ireland. He died without heirs in September 1726, and his four surviving sisters became co-heiresses to the Dunmore property. Their son Richard Mansergh Street George (killed by rebels in 1798) was the ancestor of the Street Georges of Headford.
Membership
He was elected to the Irish House of Commons as Member of Parliament for Clogher in September 1703, sitting until his death.