Letter from [Alan Archibald Campbell] Swinton, to W. F. Andrews [Esquire], A. M. I. E. E., [Honorary] Secretary London Local Group, Electrical Power Engineers' Association, 14 Violet Road, Bow, E. 3. Acknowledges receipt of a previous letter inviting him to join the Electrical Engineers' Association, politely declining as he is a member of many societies and finds it difficult to keep up with them all. 21 January 1928