author
b. 1925
Best known for lively mid-century juvenile mysteries, this writer also turns up in reference publishing, linking adventure stories with later dictionary work. Her books include the Penny Allen mysteries and a title in the Patty and Jo series.

by Jean L. (Jean Lyttleton) McKechnie
Jean Lyttleton McKechnie, born in 1925, was an American author whose work appears in mid-20th-century children's and young adult fiction. Library and catalog records credit her with Penny Allen and the Mystery of the Hidden Treasure and Penny Allen and the Mystery of the Haunted House, both published by World Publishing in 1950.
She was also connected with Patty and Jo: The Case of the Toy Drummer from 1951. Bibliographic sources additionally list her name on editions of Webster's New Twentieth Century Dictionary of the English Language, suggesting that her career extended beyond fiction into reference or editorial work.
Very little biographical detail is easily confirmed from reliable public sources, so the books themselves remain the clearest guide to her legacy: brisk, puzzle-filled stories for younger readers, along with a visible presence in classic reference publishing.