There are a number of shipping manifest entries for her.
She left England from Liverpool on the 'Parthia' on 11 April 1959 heading for New York. Her intention was to remain in the US. She was single, b. 21 May 1931 and gave her UK address as 8 Chepstow Mansions, Bayswater, London. Her occupation is given as Air Hostess. She potentially shows on a crew list for PanAm Airlines in the mid 1950s. One crew list in 1958 shows her as Ann G Stephens, with British nationality.
Monica
That 1958 record is her travelling from Leghorn Italy to New York 1st Class on the SS President Monroe. Passport 804897 departed 29th May 1958 arrived 9 Jun 1958. Address
633 15th St, N. W. Wash, DC.It's the same passport number on the Parthia dep. Liverpool 11 Apr 1959 arr New York 20 Apr 1959 (Again first class). The Address though difficult to read appears to be
App.2633 15th St, N.W. Washington 9.D.C.2633 looks more likely residential on google streetview.