Her father is on her birth certificate as Richard Dunn Polwarth a Record Clerk (Air Force) it was not the Royal Air Force then her mother was Agnes Ryell Polwarth (née Rainford)
Her parents both died In Exning, Cambridge.
Her father ended up when he retired at RAF Bury St. Edmunds in the late 1960s as a Flight Lieutenant (don't ask me how Record Clerk who probably never was in a plane in his life? ended up a Flight Lieutenant but he did and others did - what a phoney setup existed in this country didinit)
My wife was born in Newmarket and is still a frisky filly.
Anyhow notice how the middle names at one time for the true brits where their grandmother's maiden name.
Not that luck on my side my lot where 100% thoroughbred Irish Catholics all Dark haired, blue eyed Arians.
And found the Polwarth's easily through the census and beyond they actually where from the place Polwarth in Scotland.
And The Dunn from Dunn in Scotland.
They were all devoit Methodists.
So Norman mebee your lot are related to my wife's lot from Dunn.
Anyhow my wife's lot must of been turning in their graves when she married me 50 years ago a thorougbred 100% Catholic, dark haired, blue eyed, Arian Genetic Catholic.
Life's a bitch innit.
And I am a white Arian socialist to boot