Little Town on the Prairie

The seventh of the Little House books series. 
Laura is growing up and is hoping to become a school teacher. Mary goes away to special school and is sorely missed.
Laura is almost fifteen. The long winter is over. With spring comes socials, dances, and "Literaries." There is also work to be done. Laura spends many hours each day sewing shirts to help send Mary to a college for the blind. But, in the evenings, Laura makes time for a new caller, Almazo Wilder.