Seuss never had a sister. In fact, he never had any siblings.
Dr. Seuss had an older sister named Marnie (Margaret), and a younger sister named Henrietta who died when she was less than two of pneumonia.
Marnie is his sisters name.
Theodor Seuss Geisel (1904-1991), better known as "Dr. Seuss" had an older sister, Marnie, but a younger sister, Henrietta, died as an infant.
marnie
Ms.Seuss
no
Dr. Seuss's niece was named Peggy Geisel. She was the daughter of his sister, Marnie.
henrietta
no one really noes how she died
took a poo and got stuck
Marnie GesielI think that was the only one
along time ago