Bert lahr's son wrote a book about him called notes on a cowardly one of these

Below you can find the Bert lahr's son wrote a book about him called notes on a cowardly one of these Jeopardy Words Answer. The answer to Bert lahr's son wrote a book about him called notes on a cowardly one of these has 4 letters. This clue belongs to the Show biz biographies category and is part of Jeopardy Word Level 42. If you scroll near the bottom you will find other clues and answers part of level 42