Like most businesses, the advertising industry has changed in many ways over the past seven decades - and Ginny Bahr has seen it all first hand. With 69 years of consecutive service, she is the original Mad Woman and the longest-serving employee at J. Walter Thompson, now known as Wunderman Thompson. Ginny's got spunk, clever wit, and spirit (think Betty White!) and at 93 is retiring not because she has to, but at her family's request that she take the time to slow down, just a little. Unlike other guests on LEAVE YOUR MARK, Ginny has already left her mark. In this episode, Ginny shares the secret to her longevity, how the industry has changed over seven decades, and the lessons she hopes to impart.