Marjorie Guthrie Williamson (1898-1985) (1898–1985) Parents Quenelda Mary Clegg Charles James Williamson Children Sir Derek James Bibby, 2nd Bt. Patricia Mary Bibby Joan Elizabeth Bibby John Christopher Bibby Anne Marjorie Bibby Siblings Quenelda Anne Williamson Partners Sir Arthur Harold Bibby, 1st Bt.