Looking for any remaining family of Robert Beckett (Deceased)

[Austin1]

I am still looking for any family still living in the Sheffield area related to Robert Beckett, who owned a Precision Engineering Company at 72 Sidney Street, Sheffield circa 1960's - 1990's. I now own the car he owned then, a 1955 Austin Healey 100 M. I have tracked down all of the previous owners and should like to ask any of his remaining relatives if they know anything about his ownership of it from 1955 - 1961. Many thanks for your time.