Conversation so far:
What made Robert Dale Owen stand out as a congressman?
Robert Dale Owen was also involved in the debates about the annexation of Texas and an Oregon boundary dispute in 1844.
What was Robert Dale Owen's stance in the debates about the annexation of Texas and an Oregon boundary dispute in 1844?

Question: Who else was involved?
Self-contained rewrite: Who else was involved in the debates about the annexation of Texas and an Oregon boundary dispute in 1844 besides Robert Dale Owen?