| Born | City & County Hospital, Londonderry, N.Ireland - 25th February 1947 |
| Married | |
| Died | St Thomas' Hospital Nurses Home, London - 8th August 1967 |
| Burial | Golders Green Crematorium, London |
Always called by her second name, Gail was outwardly a cheerful, gregarious, extroverted person. She had a happy childhood, enjoying swimming, music (playing both the piano and guitar) and friends. Whilst a student nurse at the famous St. Thomas' Hospital in London, she started suffering from depression. Sadly, in August 1967, she killed herself with an overdose. For several years, with the help of her aunt Lois Moriarty (née Redman), she had been researching the family history (see, for example, her Notes on the Powells). This research, with her collection of material, is a major source for this site.
| Children | |
| Spouse | |
| Siblings | Geoffrey Halley (1942-) |
| Parents | Robert Halley Henderson (1913-1988), Beryl Robina Redman (1917-2001) |
