In 1919 he was selected to represent "his church and his race" at the Paris Peace Conference, one of a group of ten American blacks who would confer with President Woodrow Wilson and his conferees over the future of the German colonies in Africa (roughly present day Cameroon, Tanzania, Rwanda, Burundi, Namibia and Togo).[2]
Singleton spoke at the 1921 opening of Joyland Park, Atlanta's first amusement park for blacks.