South Holland, Lansing, Dyer, and other surrounding communities, anchored by Reformed churches and Christian schools. In California, the San Joaquin Delta had a major Dutch (incl. Frisian) and Belgian influence, as settlers from those countries arrived in the 1850s, after California obtained statehood. They drained away swamps and created artificial islands known as polders, constructed dikes to back away the Sacramento and San Joaquin Rivers flowing into the San Francisco Bay, also turned them into fertile farmlands and set up inland ports such as Stockton. Also their communities like Lathrop, Galt, Rio Vista and French Camp which were named for Belgians from Belgium are of both French (Walloon) or Flemish origin. Not included among Dutch Americans are the Pennsylvania Dutch, a group of German Americans who settled in Pennsylvania in the colonial era and whose name is a corruption of the word "Deutsch", meaning "German". 2020 population of Dutch ancestry by state As of 2020, the distribution of Dutch Americans across the 50 states and DC is as presented in the following table: Notable people Harmen Jansen Knickerbocker was an early Dutch settler of New York's Hudson River Valley. In art, Willem de Kooning was a leading Abstract Expressionist painter, often depicting the human form in violent brush strokes and daring color juxtapositions. Muralist Anthony Heinsbergen interior designs are still seen today in most of the world's movie theaters. Cowboy artist Earl W. Bascom, a sculptor known as the "cowboy of cowboy artists", is a descendant of the Van Riper family who was early settlers of New York. In business, the Vanderbilt family was once among the richest families in the United States. In literature, Janwillem van de Wetering is renowned for his detective fiction; his most popular creation being that of Grijpstra and de Gier. Edward W. Bok was a Pulitzer Prize-winning autobiographer and magazine editor. He is also credited with coining the term "living room". Greta Van Susteren's father was a Dutch American. Prolific poet Leo Vroman escaped from the Nazi-occupied Netherlands to the Dutch East Indies to end up in a harsh concentration camp for Europeans run by the Japanese army when it overran the islands. After the war, he immigrated to the United States. His Dutch Indonesian friend, fellow camp survivor, and author Tjalie Robinson also lived in the United States, where he founded several cultural institutions. The author Erik Hazelhoff Roelfzema, writer of the book