Sylvia Leist was a full not a half sibling of my father Francis Howard Leist and his brothers and sisters. I noticed another tree listing their mother as Ina rather than Inez. My eldest sister is named after my Grandmother Inez Elizabeth Bickett Leist. I'm not sure how you ended up with Sylvia as a half sister, but that is incorrect. I remember as a child meeting my uncle George and his wife Sylvia.