Held at US National Archive, but not yet digitised - see
"Holton Heath RNCF Luftwaffe target dossier". US National Archive. NARA (US National Archive and Records Administration). 1941. NAID 122211688. Retrieved 19 November 2024.
Referenced as "GB 76 11 Sprengstoff und Munitions-Fabrik Holton Heath", 3.5km to the W, in the list of nearby targets ("Benachbarte Ziele") in the Target Dossier for Hamworthy Army Camp - see
"Hamworthy Army Camp Luftwaffe target dossier". US National Archive. NARA (US National Archive and Records Administration). 1943. NAID 241202062, GB 14-72-1 to 3. Retrieved 19 November 2024.
For example shown here
"Holton Heath RNCF Luftwaffe reconnaissance photo". US National Archive. German Flown Aerial Photographs, GX 12059 SG, Exposure 661. NARA (US National Archive and Records Administration). 28 August 1942. NAID 286961401. Retrieved 19 November 2024. The site also appears inter alia in photos taken on 10 Sep 1942.