Ричард Кинг Меллон: Градостроитель и филантроп Питтсбурга

Mellon served in the United States Army in both world wars and remained active in the United States Army Reserve, receiving the Distinguished Service Medal and rising to the rank of lieutenant general.

He is chiefly remembered for his urban renewal efforts in Pittsburgh, undertaken in an unlikely bipartisan (Mellon was a lifelong Republican) partnership with the city's postwar Democratic mayor David L. Lawrence. After returning to the city following World War II, Mellon developed an interest in improving Pittsburgh's severe flooding, pollution, and urban blight. Under the auspices of the Urban Redevelopment Authority of Pittsburgh (URA), massive demolition and redevelopment projects transformed the city, backed politically by Lawrence and financially by Mellon and his companies. Mellon also used his economic power to push companies and landowners to comply with new regulations. In 1955 a redevelopment plan and federal funding were approved to coincide with the construction of a new civic arena (1961 2010). The URA, with the support of R. K. Mellon, displaced 8,000 residents, businesses and churches. And while the Civic Arena and later Consul Energy Arena/PPG Paints Arena were constructed in the area, dozens of acres of land still remain vacant. Mellon served as Vice President of American Council to Improve Our Neighborhoods, an organization to promote for profit private urban renewal projects.

He married Constance (nee Prosser) McCaulley, daughter of New York City banker Seward Prosser, in 1936. Constance was the widow of Vance McCaulley, whom she married in 1929 and who died in 1935. They adopted four children: Richard P. Mellon, Seward Prosser Mellon, Constance Barber Mellon, and Cassandra Mellon Milbury. Richard King Mellon was also the primary financial founder of Carnegie Mellon University's Heinz College, then known as the School of Urban and Public Affairs.

The Richard King Mellon Foundation manages his charitable estate and has recently participated in redeveloping industrial brownfields in Pittsburgh.

In 2001 the foundation donated two tracts of land, totaling 61,633 acres, to the Louisiana Department of Wildlife and Fisheries (LDWF) for the Maurepas Swamp WMA. Between 2001 and 2011 another 12,000 acres were gained through purchases and donations. In 2012 another 29,630 acres (The MC Davis Tract) was acquired from The Conservation Fund. Subsequent acquisitions of the Rathborne, Boyce, and Crusel tracts now gives the WMA 122,098 acres that all began with the Mellon Foundation donation.