1850 Samuel Clemens Alias Mark Twain, age 15 Oakwood United States › Missouri › Marion › Township of Mason › Oakwood
1910 ~63km Workers in Fargo & Phelps Shoe Co. Louisiana United States › Missouri › Pike › Township of Buffalo › Louisiana
1939 ~63km A mother teaching her children Louisiana United States › Missouri › Pike › Township of Buffalo › Louisiana
1904 ~63km Jessie Tarbox Beals in front of the Austrian Government Building at the Louisiana Purchase Exhibition Elmwood United States › Missouri › Pike › Township of Buffalo › Elmwood
1913 ~69km The first commercial boats to enter the new lock Keokuk United States › Iowa › Lee › City of Keokuk › Keokuk
