The star of John Ford classics like ''How Green Was My Valley'' and ''The Quiet Man,'' O'Hara is best known as a robust-but-virtuous leading lady who gave as good as she got from guys like John Wayne. This memoir won't change that. She details her troubled marriage to alcoholic would-be screenwriter Will Price, which led to a messy, public battle for custody of their daughter, Bronwyn. And she dishes up some colorful anecdotes, describing Ford as a temperamental tyrant who once punched her in the jaw for a perceived insult but who also sent her poetic, passionate, probably drunken love letters. O'Hara also quietly drops a little bomb about walking in on the director while he was kissing another man. She doesn't make much of the revelation; indeed, most of her reminiscences have an air of detachment hardly befitting this fiery ''Queen of Technicolor.'' Nevertheless, '''Tis Herself'' satisfies.