. . . . . . "74th (Essex Fortress) AA Bn" . "74th (Essex Fortress) AA Battalion" . . . "74th (Essex Fortress) S/L Rgt" . "Air defence" . . "609 (Mixed) HAA Regiment (Tottenham)" . "Essex_Fortress_Royal_Engineers#Precursor_unit" . . . "Coast Defence" . . "Essex Fortress Royal Engineers" . "1st Essex" . "Essex (Fortress) Royal Engineers" . . . "1908" . "1955" . . "Essex Fortress Royal Engineers" . . . "74th (Essex Fortress) AA Bn, RE" . . .