Dr John Lettsom, born to a Quaker family on Jost van Dyke, was the founder of the London (British) Medical Society and the Royal Humane Society.
El Manual de viabilidad, tránsito y medio ambiente
Dr John Lettsom, born to a Quaker family on Jost van Dyke, was the founder of the London (British) Medical Society and the Royal Humane Society.
