They had a son named David age 114.
(18 October 1900 - June 1912) (divorced) 1 child
In 1902, Sinclair married Meta Fuller, who had been a childhood friend and whose family was one of the First Families of Virginia. The couple had a child named David, born on December 1, 1901. Around 1911, Meta left Sinclair for the poet Harry Kemp, later known as the Dunes Poet of Provincetown, Massachusetts.