Complex sentence: Grace Drayton (1877--1936) was an illustrator of children's books, fashion pages, and magazine covers She is considered to be one of the first and most successful female cartoonists.
Split into simpler sentences: Grace Drayton (1877--1936) was an illustrator of children's books, fashion pages, and magazine covers. Drayton is considered to be one of the first and most successful female cartoonists.