WATU matched diverse skills to tactical problems

Sixty-six Wrens served at WATU between 1942 and 1945, some briefly and some across most of the war. Laura Janet House was a mathematical prodigy; Nancy Wales was a hockey player selected for her understanding of team tactics. June Duncan was one of the longest-serving members, Janet O'Call was a plotter who became a game player, and Mary Pool was the first signals officer to take the Wren course. Captain Gilbert Roberts contributed destroyer-command and tactical-school experience, while tuberculosis prevented him from returning to sea and redirected those skills into experimentation and instruction. Period disapproval of Roberts's wartime marriage breakdown and 1947 remarriage also limited his formal recognition. WATU matched varied intellectual and professional strengths to a demanding staff problem instead of treating the Wrens as passive assistants. By playing both U-boats and escorts, the team gave visiting officers an active opponent rather than a scripted demonstration.