A birth registration was found for Keith M Willgoss: Mother's Maiden Surname: Austin; Date of Registration: Apr May Jun 1943; Registration district: Bangor; Registration county: Anglesey; Volume Number: 11b; Page Number: 608. Parents: William H. Willgoss and Doris E. Austin, married 1926, St George Hanover Square, London, England.

In 1951, Keith M. Willgoss, 8 (along with brother, David H. Willgoss, 13) arrived at Fremantle, Australia, in a group of children from Fairbridge Farm Schools, Inc., Holland Villas Road, London, England.