George Porterfield Gates was a co-founder and partner of the Waggoner-Gates Milling Company, a flour mill in Independence Missouri. His wife was Elizabeth E. Gates. He built his white Victorian style house at 219 North Delaware in Independence Missouri. George himself wasn't really that famous. But his daughter Margaret Gates, married David Willock Wallace, and they had a daughter named Elizabeth Virginia Wallace, a name most people wouldn't recognize. Elizabeth married a young Independence Missouri fellow named Harry, that she had attended the same schools with, from 5th grade through high school. After George Gates and his wife had died, the house belonged to his daughter Margaret. Harry first moved into the house with his mother-in-law and wife in 1919. In 1952 Margaret died, and the house now belonged to Harry and Elizabeth. At the time of Margaret's death, the house was now quite famous. It was referred to as "The Summer White House". Most people referred to Elizabeth as Bess, Bessie, or simply as Mrs. Truman. George Gates was the maternal grandfather of Bess Truman, wife of the 33rd President of the United States, Harry S. Truman. The Truman Home was designated as a National Historic Site May 23, 1983, and is now operated by the National Park Service. The site also includes the two adjacent homes of Mrs. Truman's brothers, and, across Delaware Street, the home of the President's aunt and cousins. George Gates, his daughter Margaret, and her husband David are all buried in this cemetery, along with many other relatives of Harry S. Truman.