Raised in the Unitarian Universalist faith, Mark was ordained in the Unitarian Universalist ministry in 1979. For 26 years, he and his wife, Donna, served as co-ministers--first in Rochester, New York, then in Toronto, Ontario, Canada. Morrison-Reed's graduate thesis, Black Pioneers in a White Denomination, was published in 1984 and is still in print. Now retired from full-time ministry, Morrison-Reed divides his time between writing and other interests. He has been working with Meadville Lombard Theological School to organize and build the library's archive of materials relating to African American involvement in Universalism, Unitarianism and Unitarian Universalism and is teaching at the school on his research.