She was known as Peggy.
1920 United States Federal Census Record info about Margaret Baker
Name: Margaret Baker Age: 9 years Estimated birth year: abt 1911 Birthplace: Canada Race:White Home in 1920: Yonkers Ward 9, Westchester, New York Sex: Female Marital status: Single Relation to Head of House: Daughter Year of immigration: Un (there is no date given for her on the document) Mother's Birth Place: Canada Father's Birth Place: England Image: 212

She is not listed on the birth index for Ontario and if the family immigrated in 1909 she must have been born in New York.