41st (London) Anti-Aircraft Brigade
…69th S/L Rgt 456, 457, 458, 561 S/L Btys 72nd (Middlesex) S/L Rgt – from 40 AA Bde late 1941 465, 466, 467, 510 S/L Btys 41 AA Brigade Signal Office Mixed Subsection – part of 1 Company, 2 AA Division Mixed Signal…