The stated total for Owen is 105,009 but the county figures add up to 105,019. The stated total for Johnson is 77,043 but the county figures add up to 77,188. The stated total for Greenland is 7,272 but the county figures add up to 7,259.
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 Votes by Counties of the General Election of November 5, 1918 (Oklahoma City, 1918)