Son of Rev. Dr. Alexander Webster, and Mary Erskine. A maternal cousin of James Boswell. Webster married Charlotte Kerr (d. 1804) in 1771.1 , with whom he had two children, Alexander (b. 1778) and Eleonora (b. 1780). Webster was a Captain in the 4th Foot Regiment until he retired from the army in 1777.2
- 1Charlotte was the daughter of Robert Kerr of Newfield, sometime Director of Chancery.
- 2 http://www.silverwhistle.co.uk/lobsters/webster.html
Boswell went with Webster to Arniston on October 28, 1762.