James Dugold Somerville (1868 – March 1960), born in Glasgow, was a South Australian historian with a special interest in Eyre's Peninsula, especially Port Lincoln.

Somerville was the third son of Peter Somerville (25 April 1834 – 8 January 1929) of Glasgow, floriculturist, and his wife Christina née Leitch (ca.1840 – 17 June 1923) whom he married in 1860 and with five children arrived in South Australia in the Saxon in May 1871, and settled at Glen Osmond, then Knoxville (modern day Glenside or Glenunga).

Then from October 1934[2] he contributed several hundreds of articles on historical themes to the Port Lincoln Times.

He was able to enlist the assistance of a large number of private correspondents and public bodies, notably the Port Lincoln Council[3] and the South Australian Archives.

He was secretary of the Historical Memorials committee of the Royal Geographical Society of South Australia.