Louis McCall was born in Chicago, Illinois and attended Northwestern University where he received a Ph.D. Later, he also attended the National War College of the National Defense University. Louis was an Assistant Professor at the Ohio State University prior to a 36-year career in the U.S. Department of State, first as a Foreign Service officer and then as a foreign affairs Civil Service employee where he served as Consul General in Florence, Italy, Chargé d’Affaires in Brunei, U.S. Representative to the Republic of San Marino, and Assistant Inspector General. He lived in or worked in, at least temporarily, 60 countries on six continents. Whether in academia or as a diplomat, Louis found opportunities to live his faith, including part-time ministry of the good news in word and in song, including co-laboring with missionaries, national church leaders, and the underground church. When ministering early in his diplomatic career from the pulpit of a great church in Calcutta, India, Louis said to those in attendance that he had determined not to be ashamed of the gospel of Christ. That has been a commitment he has endeavored to keep over the years. In his final two years at the Department of State he organized and led the National Day of Prayer observances in the Department.