In 1841 Mathews was elected St. Joseph County Auditor .
Mathews appointed Colfax as Mathews ' deputy , a post which Colfax held for all eight years Mathews served as auditor .
In 1841 Mathews was elected St. Joseph County Auditor , and he appointed Colfax as his deputy , a post which Colfax held for all eight years Mathews served as auditor .