Price became a flying ace during Bloody April, 1917; British aviation suffered their heaviest casualties of World War I during that month. He scored two further victories on 9 May 1917, only to be shot down in turn by Lothar von Richthofen. Despite being wounded, he managed to land his aircraft in friendly territory north-east of Fampoux, France. On 1 July 1917 he was promoted to lieutenant, and was awarded the Military Cross for his gallantry on this occasion, which was gazetted on 18 July 1917:
