 Mamie began holding speaking engagements soon after Emmett died.The NAACP even hired her to go on a speaking tour around the country and share what happened to Emmett to "overflowing crowds", making it one of the most successful fundraising tours in NAACP history.Despite the tour being a huge success, Mamie, and the NAACP quickly ended it due to a business dispute with executive secretary Roy Wilkins of the NAACP over payment for her being on tour.