Many of the crosses at FUPC are carved from wood. One example is this unusual design, which can be found hanging between the Sunday School classrooms in the Calvin Building.

The church history book recounts that Calvin 203 was the first choice of the Truth Seekers Class, which was given the pick of classrooms when the new building first opened. The class ran from 1925 to 1983.

While the Truth Seekers was a mixed class, there were separate men’s and women’s Sunday School classes for many years.There was a large class for university students in the 20th century, There have been a variety of adult Sunday School classes over the years, ranging from a class on the theology of Andy Griffith to Current Events, a Lenten class on environmental stewardship, the long-running Present Word Bible Study, and the current Thoughtful Christians class.

Currently, there are two adult discussion groups in Calvin as well as an Open Door class in Upper Witherspoon.