The stated total for Ferris is 217,783 but the county figures add up to 218,233. The stated total for Bagwell is 23,664 but the county figures add up to 23,663.
Oklahoma's election ledgers for 1926 and earlier often have mistakes where the county by county figures do not add up exactly to the stated totals.
Source for Popular Vote data: Oklahoma State Election Board, "For United States Senator," Summary of the Total Vote by Counties in the General Election Held November 2, 1920 (Oklahoma City, 1920)