Waldorf, Maryland General Assembly of Maryland by an act changed the name to "Waldorf" in honor of William Waldorf Astor (1848–1919), the great-grandson of John Jacob Astor (1763–1848), who was born in Walldorf, Palatinate, Germany. On July 29, 1908, the city of Plumb Valley in Waseca County, Minnesota, changed its name to Waldorf after Waldorf, Maryland. Once a tobacco market village, Waldorf came to prominence in the 1950s as a gambling destination after slot machines were legalized in Charles County in 1949. The boom lasted until 1968 when gambling was once again outlawed. Its subsequent substantial growth as a residential community began
William Astor, 3rd Viscount Astor William Astor, 3rd Viscount Astor William Waldorf Astor II, 3rd Viscount Astor (13 August 1907 – 7 March 1966) was an English businessman and Conservative Party politician. He was also a member of the Astor family. William was the eldest son of Waldorf Astor and Nancy Witcher Langhorne (by marriage, Viscountess Astor). He was educated at Eton and at New College, Oxford. In 1932, Astor was appointed secretary to Victor Bulwer-Lytton, 2nd Earl of Lytton, at a League of Nations Committee of Enquiry in what was then known as Manchuria. First elected to the House of Commons in 1935, he