Catherine Charlotte McMahon (died 1919) (d. 1919) Parents Sir Beresford Burston McMahon, 2nd Bt. Maria Catherine Bateson Children Sir Edward Grogan, 2nd Baronet Siblings Maria Constance Georgiana McMahon Frances Thomasine McMahon Robert Bateson McMahon Sir William Samuel McMahon, 3rd Bt. Nina Gertrude McMahon Beresford Burston McMahon Gerald Charles McMahon Sir Lionel McMahon, 4th Bt. Partners Sir Edward Grogan, 1st Baronet