Female guards, like these with the SS at Bergen-Belsen in 1945, constituted up to 10 percent of concentration camps' personnel. 
From the New York Times.July 17 2010)

Female Guards

Studio Photo of Knights Cross Winner Fritz Klingenberg (scanned by HOS Bandit)

Fritz Klingenberg

A Leibstandarte Motorcycle Patrol moves thru a destroyed Russian town during the divisions advance East. The first few weeks of &quot;Barbarossa&quot; brought spectacular victories in the face of desperate Russian resistance, yet the Red Army kept on fighting. (scanned by HOS Bandit)