Child of Charles Book and Martha Aggas my great grandmother is "Hattie" Harriet Sue Book. She was born on 28 April 1870 at Butler County, Pennsylvania. She was the daughter of Charles Book and Martha Aggas. Harriet Sue Book married Samuel Patton Thompson, son of William Patton Thompson and Mary McNees, in April 1894. Harriet Sue Book died on 14 February 1935 at age 64. She was buried at Rose Hill Cemetery, Butler, Butler County, Pennsylvania. My problem is, I can not find any Martha Aggas in PA. Nor can I find any Charles Book who married a Martha. Can anybody help me?Thank you.