In collaboration with First Baptist Church and the Let Freedom Ring Foundation, archaeologists conducted excavations to uncover two buildings, the remains of the mid-19th century First Baptist Church and a smaller building that preceded it. The earlier building, referred to as the Baptist Meeting House in an 1818 tax document is thought to have housed the congregation prior to the construction of the church. That structure was replaced in 1856 by the brick church that stood on the corner of Nassau and Francis Streets until the congregation relocated in 1956.