[3] Forster began his literary career by publishing articles in The Eagle, the St John’s college magazine.
Forster was a keen rower and rowed for the Lady Margaret Boat Club (St John’s College) at Cambridge.
In 1892 became joint secretary of the Thames Rowing Club with L H K Bushe-Fox, a friend from Cambridge who was a fellow of St John’s college and also a barrister.
[2] In 1907 Forster began supervising the excavation work at Corbridge, Northumberland, the Roman site of Corstopitum, with W H Knowles.
[3] Forster also wrote up, with others, the results of each season’s work at Corbridge in Archaeologia Aeliana, the journal of the Society of Antiquaries of Newcastle upon Tyne.