Complex sentence: In 1939, she graduated from the School of Library and Information Science at the University of Washington and accepted a year-long position as a children's librarian in Yakima, Washington.
Split into simpler sentences: In 1939, she earned a degree in library science from the School of Library and Information Science at the University of Washington. After graduation, Cleary accepted a year-long position as a children's librarian in Yakima, Washington.