During his second term in the legislature, Webb was Speaker of the House of Representatives. As Arizona statehood approached, Webb was elected as a member of the new state's constitutional convention. He was also active in The Church of Jesus Christ of Latter-day Saints, serving as an elder in his local stake. During the US Presidential Election of 1912, Webb became a presidential elector. He was also chosen as the messenger tasked with taking Arizona's official certificate of votes to Washington D.C.. While en route, he disappeared near St. Louis, Missouri. United States law at the time required the messenger to present the official vote certificates to the President of the United States Senate by the fourth Monday of January or face a $1000 fine and loss of mileage allowance. Webb had been informed by a lawyer friend that the certificates did not need to arrive in Washington until February 1, 1913 and was surprised to learn on January 28 that Arizona's congressional delegation were searching for him. He took a train from New York City, where he learned of the search, to Washington. The official certificate was delivered a day late but Webb's explanation was determined sufficient to excuse him for the tardiness and allow him to collect a $642.75 mileage reimbursement. The reason for Webb's delay did not become publicly known for almost a year-and-a-half. On June 13, 1914, Webb married Claire Noelke of St. Louis, Missouri. The delay had come because Webb had stayed in St. Louis for several days to court his future wife instead of proceeding directly to Washington. Prior to their marriage, she had been a light opera singer. Webb died in Los Angeles, California on December 20, 1938. He had gone to the city seeking medical treatment. He was buried at the Pima Cemetery in Pima, Arizona.