Thomas Creevey was born in Liverpool in 1768.
He was a vocal supporter of Charles James Fox and the Whig Party. His interest in politics saw him stand for MP for Thetford and Appleby from 1802 to 1826. However, after the death of Fox he had become disillusioned with the Whig Party and even lived in Brussels from 1814 to 1819.
Despite this, when Earl Grey began Prime Minster Creevey accepted the post of Treasurer of the Ordnance in 1832, and he also returned to Parliament as MP for Downton from 1831 to 1832. The borough of Downton was abolished in the 1832 Reform Act and the role of Treasurer of the Ordnance was planned to be abolished, so Creevey took the role of Auditor of Greenwich Hospital in 1835. He stayed in this role until his death in 1838.