 At this time, he had several years behind him as a member of the Nygaards Battalion, one of Bergen's buekorps.He entered naval college in 1907 and graduated in the spring of 1910.Gran took an interest in science and exploration which in 1910 led to Fridtjof Nansen recommending his services to Robert Falcon Scott, who was in Norway at the time preparing for an expedition to the Antarctic and testing the motor tractor he intended to take with him.