[1] He had various positions that dealt with social justice and racial reconciliation, including serving the executive secretary of the Division of Christina Citizenship of the Department of Social Relations for ten years.
[3] He was an architect of the Episcopal Society for Cultural and Racial Unity and the National Conference on Religion and Race.
[1] After just eighteen months, he became rector of St. Paul's Church in New Haven, Connecticut where he also served as president of the Downtown Cooperative Ministry.
[1][3] In this capacity, he helped advance the church's stance on race, immigrants, refugees, social ministry, and caring for people living with HIV/AIDS.
[1] He edited The Church in a Society of Abundance (Seabury Press, 1963)[5] and the daily General Convention newspaper, Issues, in 1970, 1973, and 1976.
Walmsley married Roberta Brownell Chapin on December 29, 1959, in The Episcopal Church of the Accession in St. Louis, Missouri.