[1] Colchester was the daughter of Sir Charles Medhurst, an air attaché to the British embassy in Rome, and lived in Italy as a teenager.
[1] Following a successful interview at the Foreign Office she was immediately taken on and completed two days' training delivered by Joe Hooper.
The majority of Bletchley Park “was based on the forensic decrypting and ordering of thousands of enemies messages”.
Due to Colchester’s past experience of decoding skills, this helped in uncovering many of the “general patterns of communications and confirmed logistical information”.
[7] During Colchester’s 2010 interview with The Guardian newspaper, she mentioned how the conditions during her time at Bletchley Park were “very hard”, adding to this Colchester described the work as “monotonous, sluggish work”, but stated how gradually she began to understand the coding more and more as time went on.