 He and W. B. McInnes held a private exhibition in Collins Street before leaving for Europe in 1912.Crozier was a soldier with the Australian Imperial Force after enlisting in March 1915 where he served in the 22nd Battalion in Egypt and on the Gallipoli peninsula.Whilst at Gallipoli, he was approached (with other soldiers Ted Colles, Otho Hewitt, Cyril Leyshon and David Barker) by journalist C. E. W. Bean to help illustrate the "Anzac Book", a collection of short stories and illustrations for the troops.