Samuel Forsyth was born in
Wellington, New Zealand, on 3 April 1892, one of four children of Thomas Forsyth, a night watchman on the
SS Maori of
Thorndon, and his wife, Grace. He attended
Thorndon School and later Terrace School. After completing his education, he found employment as a
gold amalgamator for the Monowai Gold Mining Company based at
Thames. Forsyth participated in charity work, volunteering for the Sailor's Friend Society. He was also interested in the military and in 1910, joined the
Territorial Force in which he served as a field engineer. ==First World War==