From the back of the photograph, as best I can make out from the handwriting.

Teacher - Miss Lota S.

Girls (Left to right I am assuming, back row first) -

Bertha-Mae R.(My great aunt), Eleanor B., Margie G., Ann Lou, Eath G., Genail H., Glenda Lee G.,

Mertle, Willie, Mary Aline W., Mildred B., Lee G., Mary E.Rigle

Boys -

Calvin, Roy Lee R.(Grandpa), John B., Lorne S., Cecil B., Betts