Women were deliberately excluded from stockbroking during the time period that Mortimer began working in the industry.

In the 1939 England & Wales Register, Mortimer's occupation is listed as "Stocks Shares Broker Incapacitated W.V.S.".

[1] At the time of her father’s death, her brother Thomas Glanville Mortimer, and colleague Walter John Way, were also made partners.

[8] The offices of W Mortimer & Sons in Bedford Circus were destroyed in the Exeter Blitz of 4 May 1942, and it is not clear if the company was still operating by this point or continued past this event.

She never married or had children, and lived at the Mortimer family home at 26-27 St Leonard's Road, Exeter, until her death at the age of 48.