Alfred Southerland Blackman ( -1939)
1898 Member of IEE; City Electrical Engineer, Bradford, Yorks.
1919 of the Electricity Office, Dunning Street, Sunderland.[1]
1922 M.I.Mech.E., M.I.E.E., Chief Elec. Engr. and Gen. Manager, Sunderland Corporation Electricity Supply Dept. Address: Electricity Offices, Dunning Street, Sunderland.