sentences:  He was also president of the local school board from 1910 to 1916, mayor of Grantsburg from 1914 to 1916, and vice president of the Board of Trustees of Hamline University from 1914 to 1918.He served as mayor of Grantsburg between 1914 and 1916.Nelson was first elected to the 65th Congress as a Republican to fill the vacancy caused by the resignation of Irvine L. Lenroot, who resigned after being elected to the U.S. Senate.