Thanks for the information Robert. I have also a record for another wife prior to Jennie for Walter Charles Pethick.( Lucy Sage of Michigan who died shortly after their marriage. )
Perhaps as more information becomes available in the upcoming years, Jennie and Watler's date and location of passing will be found.
As in most early censuses or records, women were either noted as spinsters despite not being old or relics if they were widows,