I. S. Leevy Johnson holds a robust educational background, including an associate degree in mortuary science and a bachelor's degree in business, followed by a law degree from the University of South Carolina School of Law. He made history as the first African American to graduate from the law school in the 20th century. Johnson's professional journey includes significant roles in the public sector, where he was one of the first black men elected to the South Carolina General Assembly since the Reconstruction era. He later transitioned to leadership roles in the legal and educational sectors, including serving as the first black president of the South Carolina Bar and chairing the board of trustees at South Carolina State College. Currently, Johnson practices law with his son and operates a family funeral home.

I. S. Leevy Johnson's political identity is steeped in a legacy of pioneering civil rights advancements, marked by his groundbreaking achievements as a black leader in South Carolina. His strategic approach often reveals an unexpected synthesis of progressive civil rights advocacy with a deeply rooted, localized commitment to community service. Johnson's rhetorical style is understated yet profoundly impactful, emphasizing personal and collective resilience over grand ideological declarations. His career choices, from law to mortuary science, reflect a multifaceted dedication to serving his community in unique ways.