is named after him. Theodore Roosevelt and Franklin Delano Roosevelt, presidents of the United States, were not only of Dutch descent but cousins. Martin Van Buren was another president of Dutch descent. Martin Kalbfleisch served as a U.S. Representative for the state of New York. Pete Hoekstra served as congressman for the state of Michigan's 2nd congressional district from 1993 until 2011. On January 10, 2018, he took office as United States Ambassador to the Netherlands. Jacob Aaron Westervelt was a renowned and prolific shipbuilder and Mayor of New York (1853–1855). In science and technology, inventor and businessman Thomas Edison was of Dutch descent. Nicolaas Bloembergen won the Nobel Prize in 1981 for his work in laser spectroscopy. He was also awarded the Lorentz Medal in 1978. Physicists Samuel Abraham Goudsmit and George Eugene Uhlenbeck proposed the concept of electron spin. Goudsmit was also the scientific head of the Operation Alsos mission in the Manhattan Project. Tjalling Koopmans was the recipient of the Nobel Prize in Economics in 1975. In astronomy, Maarten Schmidt pioneered the research of quasars. Astronomer Gerard Kuiper discovered two new moons in the Solar System and predicted the existence of the Kuiper belt, which is named in his honor. Popular astronomer Bart J. Bok won the Klumpke-Roberts Award in 1982 and the Bruce Medal in 1977. Jan Schilt invented the Schilt photometer. In sports, Hall of Fame baseball player and two-time World Series champion Bert Blyleven gained fame for his curveball. Earl Bascom was a Hall of Fame rodeo champion known as the "father of modern rodeo." Golfer Tiger Woods has Dutch ancestry through his mother. In religion, Albertus van Raalte was a Reformed Church of America pastor who led the Dutch immigrants who founded the city of Holland, Michigan in 1846. Louis Berkhof, a Reformed systematic theologian, is greatly studied today in seminaries and Bible colleges. Herman Hoeksema, a theologian, was instrumental in the series of events that precipitated the creation of the Protestant Reformed Church. Prominent Christian author Lewis B. Smedes wrote Forgive and Forget, an influential work discussing a religious view on sexuality and forgiveness. Menno Simons (1496 – January 31, 1561) was a former Catholic priest from the Friesland region of the Netherlands who became an influential Anabaptist religious leader. Simons was a contemporary of the Protestant Reformers and it is from his name that his followers became known as Mennonites. See