"School-age" marriages are increasing in Iowa, following a trend toward younger marriages which began about 1900 in America. Whether you feel that this is "good" or "bad," here are some facts about the situation.
Burchinal, Lee G. and Chancellor, Loren
"What About School-Age Marriages?,"
Iowa Farm Science: Vol. 12
, Article 5.
Available at: https://lib.dr.iastate.edu/farmscience/vol12/iss12/5