Physician in Prince George’s County, Maryland.

Visited London, where he attended the practice of the Foundling Hospital (1752). Met Franklin in Philadelphia (1754) and later sent him an account of ball lightning (1755). Contributed articles on medical treatments, weather, and animals to the Gentleman’s Magazine and the Royal Society’s Philosophical Transactions. Elected to the American Philosophical Society (1769). Anti- Catholic; opposed proprietary rule in Maryland. Occasionally participated in the Tuesday Club of Annapolis. Trustee of the free school of St. Mary’s, Charles, and Prince George’s Counties (1774). Delegate to the provincial convention at Annapolis (1774-75).

Son of Thomas and Lucy (Smith) Brooke of Maryland. Married Rachel Gantt (1767); two children. Resided at Brookefield.