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. The stated total for Carter is 102,094 but the county figures add up to 102,123. The stated total for Purcell is 78,208 but the county figures add up to 78,200.
Source for Popular Vote data: Oklahoma State Election Board, "For State Auditor," Summary of the Vote by Counties of the General Election of November 5, 1918 (Oklahoma City, 1918)