South Side School 4th Grade Class, 5th Grade Class, 6th Grade Class. Material: paper. Size: 5 3/8" x 3 1/2". Description: black and white postcard photograph; pictured: 38 school children Fourth Grade Class, Fifth Grade Class, Sixth Grade Class and their teachers standing in a classroom at South Side School in Waseca, desks in the foreground, blackboards with writing, doorways, flags and pictures in background. Southside School.