One of the central aspects of First Reformed Church in its early years was the German Brotherhood, an evangelistic subset of Volga Germans founded in Russia that spread to the New World. First Reformed Church met on Sunday morning and Sunday evening in these early years, but the German Brotherhood held services on Saturday nights, Sunday afternoons, and Wednesday evenings as well. These services, held in German, were not only times of worship, but also formed the backbone of the German social community. Men and women would sit on opposite sides of the church, and were often accompanied by music from the German Brotherhood band. They used no hymnbooks, but sang words shouted by a song leader along with tunes that were commonly known. Their times of prayer were heartfelt; members would pray out loud and all at once, and silence would be held by those who had finished praying until the last prayer was finished. Perhaps most interestingly, three members of the Brotherhood would be selected in the service to preach extemporaneously on a previously chosen passage of Scripture.
The Brotherhood was not limited to Flint. There were chapters around the United States, all of whom had roots in Volga German Russia. The Brotherhood in Flint hosted a convention about once a year, typically around Labor Day. German Brothers travelled from as far as Colorado and Nebraska and as close as Saginaw and Owosso. They did not stay in hotels, as local members made great effort to host their Brothers from out of town. These conventions consisted of some business, but much worship and prayer, including a service on Labor Day itself before guests went back home.
The German Brotherhood was a dominant fixture in the life of First Reformed Church over its first decades, and reached its heyday after World War Two. As the years went on, however, the influence of the Brotherhood began to wane. The cultural conservatism of the brothers became more and more out of touch with society as a whole in the post-war era. The fading influence of the German speaking immigrants contributed as well, as the children and grandchildren of the Brothers assimilated into American society. The German Brotherhood continued meeting into the 70s, and even for a few years in the 90s, but has since faded into memories. Today, the influence of the Brotherhood is felt in the lives of those who were reared in its culture. Many members of Peace and other churches owe their love for God and their passion for prayer and his word to the German Brotherhood.