Pontella Mason is one of Baltimore’s unsung visual artists. He has created murals for the Anacostia Community Museum, former President Jimmy Carter, and several other public organisations. His murals depict African American life and the diaspora. In 1999, he created the extensive mural Ancestral Roots, which depicts the antislavery heroes Harriet Tubman, Sojourner Truth, and Frederick Douglass, as well as Martin Luther King Jr., Malcolm X, Muhammad Ali, Notorious B.I.G., Tupac, Shirley Chisholm, and Marcus Garvey.

In 2011, the Puffin Foundation commissioned Mike Alewitz to paint a mural for the Puffin Gallery of Social Activism that would be on display in the Museum of the City of New York. Completed in 2014, the mural is a tribute to the labour and social justice movements and contains four panels. It includes slave ships and depicts the antislavery leader Frederick Douglass, as well as Martin Luther King Jr., Coretta Scott King and Elizabeth Gurley Flynn.However after viewing the mural, the museum declined to display it. They requested changes that reduced the prominence of Martin Luther King Jr. and added the Women’s Christian Temperance Union.  Alewitz calls this a case of censorship and continues to campaign for his mural to be displayed.