I saw him first

Marjorie Weinman Sharmat (November 12, 1928 – March 12, 2019) was an American children's writer. She wrote more than 130 books for children and teens and her books have been translated into several languages. They have won awards including Book of the Year by the Library of Congress or have become selections by the Literary Guild. Perhaps Sharmat's most popular work features the child detective Nate the Great. He was inspired by and named after her father, who lived to see the first Nate book published.