Arthur D. Howden Smith 
The Audacious Adventures of Miles McConaughy [EPUB ebook] 

Capt. Miles is an outstanding character even among the many notable characters featured in nautical yarns. His hatred for the English is only to be matched by his detestation of the Irish and his devotion to the British Empire. But when his ship the William and Mary is sunk by a U-boat, this anti-English, anti-Irish Irishman who hails from Belfast is willing to bury contention with his neighbors in order to get back at the Hun. a thrilling World War I story!