In the mid-1780s Marryat migrated to
Grenada and lived there until 1791, when he returned to London. Becoming prosperous as a merchant, he invested in West Indian plantations and became an absentee slaveowner in
Jamaica,
St. Lucia,
Trinidad, and Grenada. While in Grenada, Marryat had an illegitimate daughter named Ann by a slave woman, both of whom he freed before leaving the island. Ann Marryat later became a slave owner herself, receiving over £500 compensation on freeing her 13 slaves in 1837. Marryat, also a shipowner, helped to develop the
London Dock Company, and served as chair of
Lloyd's from 1811 until his death. He joined the London bank of
Sir Charles Price, based at 1
Mansion House Street in the City of London. It became known as Marryat, Kay, Price and Coleman once he became head of the firm in the 1820s. ==Publications==