First rural mail carrier, Macclenny. 1911 - Landfill begun for new jail to replace calaboose. 1912 - Battle of Olustee Monument erected. Florida's first cattle dipping vat for control of fever tick began operation near Macclenny. 1918 - World War I. Troops guarded local trestles.
Spanish influenza kills hundreds.
Glen's first masonry building was a combination merchantile and Masonic Hall. First accident on the new highway occurred near Olustee. Citizens Bank founded. Austin Bus Line was first public transportation through County. 1927 - Boundry of County given in Florida law.