Alberta Scrubb was the wife of Harold Scrubb, and mother to Eustace Scrubb. There's no mention how the Scrubbs are related to the Pevensie parents, so she may be the sister of Helen Pevensie or Mr. Pevensie. Alberta and Harold Scrubb were very progressive people. They were non-smokers, teetotalers (non-alcoholics), vegetarians, pacifists, republicans, and wore a special kind of underwear. In their house they had very little furniture, very few clothes on beds, and the windows were always left open. Alberta appeared to have been the true head of the family, rather than Harold.