Date of Seniority Royal Navy 28 February 1811
William Gregor was entered in the Navy List of Medical Officers in 1814.
William Gregor was employed as Surgeon Superintendent on three convict ship voyages to Australia:
Medina to VDL in 1825
to NSW in 1827
to NSW in 1828.
The first page of the Surgeon's Journal of the Royal George has the following note
*As this surgeon is in a state of derangement or imbecility of mind, let this Journal be passed.
The journal of the Royal George was kept from 15 July 1828 to January 1829.
Return to England
From the Asiatic Journal May 1830....The Royal George arrived in England from Mauritius with passengers Mrs. Anderson, Mrs. Vicar, Mrs. Cookney, Mrs. Embleton, Colonel Grant, Major Anderson, Lieut. Stewart, Dr. Gregor and Messrs Boustead, Ovens and Cookney