DeKalb County resident Lonnie Mack, a guitarist and singer whose instrumental hits in the early sixties influenced guitarists such as Keith Richards and Stevie Ray Vaughan passed away on April 21 at the age of 74. Born Lonnie McIntosh in West Harrison, Indiana on July 18, 1941. His father was a farmhand and banjo player, and Mack began performing in the family bluegrass band at age seven.