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.
took a poo and got stuck
henrietta
no one really noes how she died
Marnie GesielI think that was the only one
along time ago