Warneford was initially posted to 2 Wing on the Isle of Sheppey in Kent but was quickly (7 May 1915) posted to an operational unit with 1 Wing at Veurne on the Belgian coast.
Warneford a fost inițial trimis la Flotila 2 de pe Insula Sheppey⁠(en) din Kent, dar a fost mutat la scurt timp (7 mai 1915) la o unitate operativă din cadrul Flotilei 1 de la Veurne, de pe coasta Belgiei.