New book profiles an overlooked Chicago gospel trio, who played with Mahalia Jackson and Sam Cooke

If you name any gospel music star of the mid-20th century, Gregory Donald Gay probably has a story about them. His family was visited by singer Clara Ward, who would pull her 1957 Chrysler limousine into the driveway of their Woodlawn home. As a starstruck teenager, he sang before the “father of g...