Helen Ho recalls her sister Yvonne's brave work as a spy during the Japanese occupation of Hong Kong

"Diary of London" South China Morning Post , 29 Jul 1946 : 

A Hong Kong girl , Helen Ho , now studying nursing at a London hospital has been telling the story her adventures under the Japan. When Dr Selwyn-Clarke was imprisoned , Miss Ho and a few others took charge of the hospital work . " The Japanese , " she said , " could pin nothing on me . She was shadowed and finally arrested but , despite hours of interrogation and tarture the Japs never discoverd the steady stream of information that flowed between Miss Ho and her and sister, Yvonne , who worked as a censor . " Yvonne " Miss Ho says "was a splendid little spy ."