Mortimer, Cromwell -1752)
Cromwell Mortimer, of Toppingo Hall, Hatfield Peverell, in Essex was the second son of John Mortimer, of Toppingo Hall, and his third wife, Elizabeth, daughter of Samuel Sanders of Derbyshire. A physician, who studied at Leiden under Boerhaave, where he was admitted in 1719, took his M.D. in 1724, a licentiate of the College of Physicians in 1725 and a Fellow in 1729. For ten years he was physician of the London Infirmary. He was Second Secretary of the Royal Society, and a founder member of the Society of Antiquaries, and contributed papers to Archaeologia. He succeeded to the family property on the death of his elder brother Samuel in November 1751. By his wife Mary he had an only son, Hans, of Lincoln's Inn and Caulthorpe, near Burton on Trent. His library was sold by the London bookseller Thomas Osbourne 26 November 1753.