Benjamin Seaver was an American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 politician, serving as the thirteenth mayor

Mayor

In many countries, a Mayor is the highest ranking officer in the municipal government of a town or a large urban city....

 of Boston, Massachusetts from January 5, 1852 to January 2, 1854.

Seaver was first elected to represent Boston's Ward 5 as a member of the Common Council in 1845. He was reelected to the Common Council from Ward 5 in 1846 and 1847. In 1848 Seaver moved to Ward 4 and was subsequently elected as a councilor from the new ward in 1848 and 1849.

In July 1847 Seaver was elected as President of the Common Council and he held that position for the two and a half years that he remained on the City of Boston Common Council.

From 1846 to 1848 Seaver served as a member of the Massachusetts House of Representatives

Massachusetts House of Representatives

The Massachusetts House of Representatives is the lower house of the Massachusetts General Court, the state legislature of the Commonwealth of Massachusetts. It is composed of 160 members elected from single-member electoral districts across the Commonwealth. Representatives serve two-year terms...

 and in 1850 and 1851 he was elected to the Massachusetts Senate

Massachusetts Senate

The Massachusetts Senate is the upper house of the Massachusetts General Court, the bicameral state legislature of the Commonwealth of Massachusetts. The Senate comprises 40 elected members from 40 single-member senatorial districts in the state...

.