<page_title> 38th United States Congress </page_title> <section_title> House of Representatives </section_title> <table> <cell> Francis P. Blair, Jr. (R) <col_header> Vacator </col_header> </cell> <cell> Lost contested election June 10, 1864 <col_header> Reason for change </col_header> </cell> <cell> Samuel Knox (UU) <col_header> Successor </col_header> </cell> <cell> June 10, 1864 <col_header> Date of successor's formal installation </col_header> </cell> </table>
Francis P. Blair, Jr. (R) was until June 10, 1864 and Samuel Knox (UU) succeeded him from June 10, 1864.