Harvey survived the War, having been captured in 1916 during a daring solo trench raid. As a POW, he was moved from camp to camp, and later wrote about his experiences in Comrades in Captivity. There were, of course, the obligatory escape attempts, including a leap from a moving train which resulted in swift recapture. There was also the opportunity to write poems: the various commandants were civilised enough to allow Harvey to send home his work, where it was published to great acclaim. Many of those POW poems are collected in this edition, and one or two and can be found online here.
The wonders of social technology mean that you can now follow F. W. Harvey on Twitter (@FWHarvey), where he will tell you all about his incarceration, his inspirational role in the first trench newspaper (which, contrary to received opinion, was not The Wipers Times), his love of cricket, and much else besides.
P.S. Grant emails to tell me that Harvey's Gloucestershire Friends: Poems from a German Prison Camp can be read online here.