"M. E" does most likely stand for Methodist Episcopal, commonly known as the Methodist Church. Methodists received this name due to the concern of the Rev. John Wesley, an Anglican (Episcopal) priest who in the latter half of the 18th century traveled in England and the United States promoting a revival of Christianity and a "methodical" approach to Christian life and spirituality. The congregations he founded in the USA became known as "Methodist Episcopal." In some areas of the country, there is also a separate denomination known as the African Methodist Episcopal Church (AME). In relatively recent years, Methodists in the United States joined with members of the former United Brethren to form the United Methodist Church (UMC). The UMC has eight districts in the state of Wisconsin, with a bishop and headquarters at Sun Prairie, WI. In Wausau, there are now several UMC congregations, but I think the first and oldest of these is now known as First United Methodist Church located downtown near Third Street. Check a directory for Wausau, WI for the First UMC, or try contacting the United Methodist office in Sun Prairie if you need the location of old records. The Rev. John W. Krueger (ELCA) former chair, Faith and Order Commission, Wisconsin Council of Churches