Lydia Childs
From Tardis Wiki, the free Doctor Who reference
Lydia Childs (d. 1941) was an employee for the Torchwood Institute around circa World War I. She was based in Torchwood 3 base looking after the Rift. Her fellow workers were Harriet Derbyshire, Douglas Caldwell, and Charles Quinn as well as her boss Gerald Carter. (TW: To the Last Man)