I have just found an ancestor Dr. Fredrik Charles de Hoedt, Born in Colombo, who during his miltary service (unknown period) was an Assistant Garriason Surgeon and then between 1820 and 1840 was a Sub Assistant, Native Medical Establishment in Kalutara, (Ceylon) Sri Lanka. What exactly would this establishment be, a Hospital , a Missionary ?? Can anyone shed some light on any of this information. Would there be records of Doctors? Where would they have been trained?