Education
Mars graduated from the Hotchkiss School in Lakeville, Connecticut in 1949 and Yale University.
Mars graduated from the Hotchkiss School in Lakeville, Connecticut in 1949 and Yale University.
In March 2015, Forbes estimated his wealth to be $26.8 billion up from United States $11 billion in March 2010. As of October 2012 the Bloomberg Billionaires List ranks as the 31st richest man in the world with an estimated Netto worth of 20.1 billion. As owner of the Diamond Cross Ranch, an 82,000-acre (33,000 ha) parcel along Montana’s Tongue River and on the northern end of the Powder River Basin, has been active in opposing the development of his part of what"s been called the "most productive coal and natural gas fields in the nation." Companies that hold the oil and gas leases to his land, rights originally made possible by the Stock-Raising Homestead Acting and the Mineral Leasing Acting, are seeking to exercise those rights on his ranch. is reportedly concerned about the large amount of water that energy exploration and production projects consume, water needed by his ranch.
The ex-couple made significant contributions to the privately owned governing body for Fort Ticonderoga, though a falling-out between Executive Director Nicholas Westbrook and Mistress led to her resignation from the board and the end of the then-couple"s financial support.
According to Forbes magazine as of 2010, he was the 52nd richest person in the world, the 26th richest American, and the richest Virginian. married Virginia Cretella, born 1929/1930 (age 85–86). They have four children: Victoria, Valerie Anne, Pamela Diane and Marijke Elizabeth.