Maisie Hawke
From Tardis Wiki, the free Doctor Who reference
Corporal Maisy Hawke worked for UNIT as a radio operator. She was engaged to Sam Hawkins, before he was killed in Wenley Moor. (TV: Doctor Who and the Silurians, PROSE: The Scales of Injustice)
She oversaw radio reports from Geneva about the escalation of war. She later relayed a message from Captain Yates about something strange going on at Auderly House. (TV: Day of the Daleks)
Behind the scenes
Hawke's name and rank was not given on-screen, only in PROSE: The Scales of Injustice. Her on-screen credit was "UNIT Radio Operator".