Connections with Peter Pan

I think I read somewhere that the idea of Clarissa and her family's surname came from the play Peter Pan by J.M. Barrie. Also, the title character in Peter Pan flew threw the window of that Darling family's house. In Clarissa Explains It All, Clarissa's friend Sam got into her room through the window. Do you know any other connections?

"Tsuppari is my former name."