Congregational

Red shield with a white cross on it containing red text, on a white background.

This logo most likely stands for Congregational Sunday School, and more specifically to the Congregational Sunday-School and Publishing Society. This organization was founded in Boston during the early 1800s, and aimed to provide literature and teaching resources to all Congregational Sunday schools.

Sunday school is a Christian educational offering aimed at children and teenagers, and is usually affiliated with a particular church or parish. Although Sunday schools can be from any denomination, they are most strongly associated with Protestantism. Sunday schools trace their origin to the British publisher Robert Raikes, who was committed to prison reform. He believed that if children were given religious instruction every Sunday, they would be steered away from a life of crime. The first Sunday school opened in 1780, and after soon spreading to the United States, they would become an important component in Christian education.