The only reference we could find to this society was on the website of the  which has some documents in its 'Environics Collection' which is about how St Mary the Virgin Aldermanbury was moved to Fulton, Missouri.  So we guess the society is (was, probably) an American-British Friendship group set up after WW2 and that the Charing Cross plaque was erected then.
This section lists the memorials created by the subject on this page:
Angle-kin Society
Creations i
Charing Cross Station - US President
The Guardian has a detailed description of the procession from Charing Cross ...
Other Subjects
Arsenal Football Club Supporters
Often referred to as 'Gooners', being a play on the team's nickname of the 'Gunners'.
2 memorials
London Hellenic Society
From London Hellenic Prize: "... the London Hellenic Society, a prestigious cultural society established in London in the 1960s by prominent members of the London Greek community ...". We think it ...
1 memorial
Woodford Green Men's Club
Either the club or its Harrier section was established in 1904.  Its origins are back in the 1880s when it was part of the sports section of the Woodford Green Working Mens' Institute.  More inform...
1 memorial
Association of Jewish Ex-Servicemen and Women
From their website: "With over 120,000 Jews having served in the British Armed Forces during the World Wars, AJEX JMA is here to ensure that their immense contribution is never forgotten. Our aims ...
5 memorials
Copers Cope Area Residents Association
Founded to protect and promote the local interests of residents of Central and Northern Beckenham. 2026: Looks as if there's been a merger with West Beckenham Residents' Association: website. Â
1 memorial
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