Sam Hamstra Jr. is a retired pastor and professor of church history. He is also the author of several books, including What’s Love Got to Do with It? (Wipf & Stock, 2016), and editor of One, Holy, Catholic, and Apostolic Tome 1: John Nevin’s Writings on Ecclesiology (1844–1849) and One, Holy, Catholic, and Apostolic Tome 2: John Nevin’s Writings on Ecclesiology (1851–1858), both published by Wipf & Stock.
Samuel Cocar is a pastor and PhD candidate at the University of Wisconsin-Milwaukee completing his dissertation on African-American Spirituality, the Roman Catholic Church, and the Black Freedom Struggle in Milwaukee, 1954–1970.