THERE'S A LONG WAY TO GO YET...THE NEXT GRADE
AND THE NEXT:
the teacher is Blanche E May, she's seen in all three groups.
Take particular notice of the girls in the CENTRE ROW, the two on the left and the three on the right.
The caption reads Class of 1958, 10th Grade. But it cannot be Class of 1958, it has to be Class of 1960, because two girls born in 1942 who graduated in 1960 are included in that group image. The graduating class in 1960 were Grade 12.