Harold St. John Loyd Winterbotham CB CMG DSO ADC (5 February 1879 – 10 December 1946) was a British soldier and surveyor who from 1930 to 1934 was Director of the Ordnance Survey.
After the war, Winterbotham served as garrison adjutant in Saint Helena, later returning to South Africa in 1908 to carry out a topographical survey until 1911.
[8] He joined the Ordnance Survey out of Southampton in 1911, being in charge of the Trigonometrical and Topographical Division.
[4] In 1920, Winterbotham returned to the same division of the Ordnance Survey, and from 1922 to 1929 was chief of the Geographical Section, General Staff.
[13] In 1939, George Washington University awarded him an honorary Doctor of Science degree.