Oliver Prescott holds a Master's degree from Harvard and began his career with an apprenticeship in Sudbury. He served in various leadership roles within the Massachusetts militia, culminating in a high-ranking general position. Prescott also held judicial responsibilities as a judge of probate for Middlesex County. His contributions extended to civic leadership, having been elected town clerk and a member of the Supreme Executive Council. Additionally, he was a Fellow of the American Academy of Arts and Sciences and a benefactor of Groton Academy.

Oliver Prescott's political identity is marked by a calculated approach to regional interests, blending military authority with educational patronage. His military career, spanning multiple ranks in the Massachusetts militia, intersects with his judicial role in enforcing Continental Congress resolves, revealing a dual commitment to security and order. Prescott's support for local institutions like the Massachusetts Medical Society and Groton Academy indicates a localized ideological focus. Despite his authoritative positions, Prescott's suavity and gentlemanly demeanor suggest a nuanced, perhaps even diplomatic, style of governance.