Mary Emily Bonsor (died 1935) (d. 1935) Parents Emily Gertrude Fellowes Cosmo Bonsor Children Richard Cosmo Alderson Siblings Sir Reginald Bonsor, 2nd Bt. Robert Cecil Bonsor Malcolm Cosmo Bonsor Arthur Charles Bonsor Edith Bonsor Ethel Bonsor Muriel Mary Bonsor Partners Edward Alderson