The Laboring Sons Memorial Grounds is a memorial ground in Frederick, Maryland located between 5th and 6th Street on Chapel Alley. The cemetery was established by the Laboring Sons Beneficial Society in 1851 as a cemetery for free blacks in the city. In 1949 the cemetery would be given to the City of Frederick who destroyed the grounds and created a whites-only park. In 1999 the original nature of the grounds was rediscovered. In 2000 the City of Frederick promised to make amends for what happened with the grounds. In 2001 the site was dedicated as the Laboring Sons Memorial Grounds. Construction on the new memorial grounds finished in 2003.