The table in the Official Directory is missing the votes for Ford in Iron County. His votes there can be inferred by using the total vote listed for the county.
Source for Popular Vote data: Michigan Secretary of State. Michigan Official Directory and Legislative Manual 1917-1918, Michigan Secretary of State (https://babel.hathitrust.org/cgi/pt?id=mdp.39015071178274&view=1up&seq=570) (accessed 18 Sep 2023)