 Ehrensvärd was editor of the journal "Tidskrift i sjöväsendet" from 1925 to 1927 and a member of the 1930 Defense Commission from 1930 to 1932.He became a member of the Royal Swedish Academy of War Sciences in 1933 and a member of the Royal Swedish Society of Naval Sciences in 1920 (honorary member in 1938).On 5 January 1909 he married Anna Enell (born (1886–1972), the daughter of pharmacist Henrik Enell and Emma (née Öst).