Conversation so far:
When was Robert Owen a US congressman?
Robert Dale Owen was elected as a Democrat to the U.S. House of Representatives in 1842. He served from 1843 to 1847 in the Twenty-eighth and Twenty-ninth Congresses.
Where was Robert Owen a US congressman?
Robert Dale Owen first served in the Indiana government until he was elected as a Democrat to the U.S. House of Representatives.
What did Robert Owen do during his time in US congress?
While serving as a member of Congress, Robert Dale Owen introduced and helped to secure passage of the bill that founded the Smithsonian Institution in 1846.
What else did Robert Owen do while in congress besides found the Smithsonian Institution?
Robert Owen was involved in debates about the annexation of Texas and an Oregon boundary dispute that led to the U.S-British boundary, the result of the Oregon Treaty.
Is there other notable political actions during Owen's career in congress besides founding the Smithsonian Institution and the debates involving the annexation of Texas?
Robert Dale Owen was also chairman of the Committee on Roads and Canals during the Twenty-eighth Congress.

Question: How long was he a congressman?
Self-contained rewrite: How long was Robert Owen a congressman?