William M. Fenton graduated at the top of his class from Hamilton College in 1826. He began his career in public service, holding various positions in Michigan, including serving as the seventh lieutenant governor. Fenton also held roles as a township supervisor and alderman, culminating in his tenure as mayor of Flint. His professional journey included a significant transition from private to public sector roles, showcasing his adaptability and leadership skills. Fenton's career was marked by a commitment to public service, ultimately culminating in his role as chief of the fire department of Flint.

William M. Fenton's political career reveals a strategic blend of local governance and public service, with a notable emphasis on community leadership. His tenure as Flint Township Supervisor and Mayor of Flint underscores a commitment to localized issues, while his varied roles in state government suggest a capacity for ideological agility. Fenton's unexpected convergence with opposing factions on certain issues indicates a highly calculated approach, possibly driven by a nuanced understanding of regional interests. His life and career, marked by public service even in death, hint at an enduring dedication to community welfare.