William Hibbert was an English planter, slave trader and merchant. He was the sixth son of Robert Hibbert (1717–1784) and Abigail Scholey. With his brother George Hibbert and cousin Robert Hibbert (1769–1849), William was a partner in the West Indian merchant house Geo. Rob. & Wm. Hibbert. The firm was involved in the slave trade and principally with the shipping, insurance and distribution of sugar from the West Indies.

George Hibbert was an English merchant, politician and ship-owner. Alongside fellow slaver Robert Milligan, he was also one of the principals of the West India Dock Company which instigated the construction of the West India Docks on London's Isle of Dogs in 1800. An amateur botanist and book-collector, he also helped found the Royal National Lifeboat Institution in 1824.