William Montgomery was an American politician known for his service in the United States House of Representatives. He represented the state of Pennsylvania during the late 19th century. Montgomery was a member of the Republican Party and was involved in various legislative efforts during his time in office. In addition to his role in Congress, Montgomery was active in local politics and contributed to the development of his community. His political career reflected the issues and challenges of his era, including economic growth and social change in the post-Civil War United States.