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
John Jacob Astor, 1st Baron Astor of Hever educated at Eton College and at New College, Oxford. Upon his father's death in 1919, John Jacob V inherited Hever Castle near Edenbridge, Kent, where he lived the life of an English country gentleman. John Jacob Astor V represented Great Britain in rackets at the 1908 Summer Olympics, winning the gold medal in the men's doubles competition together with Vane Pennell, and winning bronze in the men's singles event. Astor had been the British Public Schools rackets champion in 1904–05, and in the same year as his Olympic competition he played singles and doubles in the British Army rackets championships.