He was born in Canterbury, Kent and was subsequently educated at the Quaker school in Burford, Oxfordshire, he then went on to study medicine at Edinburgh University.
[2] In 1780 he was appointed Physician and Man Midwife to the Charity for Delivering Poor Married Women at their own Houses.
[5] His papers on botany include a description of the effect of moisture on Mesembryanthemum to the Medical and Physical Journal (vol.
[2] The genus name Simsia was published by the German Christiaan Hendrik Persoon in 1807, to honour Sims work.
He is buried in Fittleworth, Sussex with his wife Ann née Christie (1765–1835) and their only son the Rev Dr Courthope Sims MD MB (1795–1833).