08/28/2026
SPHS Centennial Celebration Series:
35/ BOROUGH SEAL
The Borough of South Plainfield was the fourth section of the original 66 square miles to separate from the Township of Piscataway: Raritan Township (Edison) exited in 1870, Dunellen Township in 1887 and Middlesex Borough in 1913, with Arbor and New Market threatening to ride the most recent wave of secession. South Plainfield exited on March 10, 1926.
South Plainfield’s movement towards separation began 20 years earlier, led by William Hamilton and members of the Good Government Club, John B. Geary Sr., and others of both political parties. Their initial attempts in 1906/07 had been unsuccessful. Undeterred, supporters refused to abandon the cause and continued to line up community and political support over the next two generations until success was achieved in March 1926. Voters in the township approved the separation on April 6, and an interim administration of candidates running on a citizens’ ticket was elected on May 6 to serve until the next general election on Nov 3. The fledgling administration held its first formal council meeting on May 10 and proceeded to evaluate the entangled interests of the old township and the new borough. Lost in the pressing issues of government was the matter of a visual identity, an official seal. From the first administration of William Hamilton though the six that followed, no headway was made until the 1956 mayoral election.
When the Republican Party swept the election, it was a fortuitous opportunity to have a common seal designed and implemented, for the newly elected mayor, Robert M. Baldwin, was a multi-talented, self-employed commercial artist. The design that Baldwin created cleverly imbedded symbolism of the past with an eye toward the future. The Council introduced Ordinance #276 on March 14, 1957, amended it April 11, and adopted it April 25, giving Baldwin’s design, you might say, the seal of approval.
Designated a Borough
Encased within the seal’s outer circle is printed “Borough of South Plainfield, N.J.” which begs the question, why was it christened a borough when born of a township? Old Samptown and Brooklyn were villages. Neighbors included the Township of Raritan, the City of Plainfield, the Borough of Metuchen, and the Town of Westfield.
In New Jersey, all 565 municipalities are classified as one of these five types: borough, township, city, town, or village. The Borough Act of 1878 specified that a borough must meet two criteria: be less than four square miles and have less than 5,000 residents. In 1897 the act was amended to allow prospective boroughs to either increase or diminish in size upon a special act of the State Legislature, which was exactly how So. Plainfield’s greater size of 8.31 sq. miles and population under 5,000 qualified as a borough.
The Stars
Baldwin separated the phrasing in the outer circle with two stars representing “the major political parties which were instrumental in the founding and development of the Borough.” William Hamilton and his supporters in the Good Government Club were Republicans, and John B. Geary, Sr. and the members of the John Geary Association for a Better Government were Democrats. Hamilton and Geary would go head-to-head in the first official general election in November 1926. Hamilton won handily, and Geary vowed to never return to politics.
The Double Lines
The inner circle has three parts divided by a double line running horizontally through the circle with a branch at the center arching to the upper left corner. The double lines represent the tracks of the Lehigh Valley Railroad which significantly contributed to the growth and development of the community. The branch symbolizes the original route of the Easton & Amboy Railroad (later named the Lehigh Valley) chartered by Asa Packer in 1872. The coal-hauling trains ran from Phillipsburg through South Plainfield to the docks at Perth Amboy. The first train rumbled through our community on May 28, 1875, 125 cars long. The continuation of the horizontal double line to the left represents the railroad’s main branch which was extended to Newark and Jersey City with both freight and passenger service.
The Gear
The gear superimposed across the tracks signifies the major industries such as Spicer Manufacturing, Harris Steel, Revell, Kentile, Inc. and David Smith Steel Company, which located their businesses track side and were dependent upon the railroad. These companies became major employers and gave So. Plainfield its blue-collar distinction.
The Hand, Paper, and Key
The hand holding the rolled paper is representative of planning. The key suggests planning is the key to the future. South Plainfield had growing pains during the 1950s. The population rose from 8,008 in 1950 to 17,879 in 1960, a jump of 123.3%. Open space was disappearing as housing starts soared; a burgeoning school-age population put a strain on the facilities; and the need for a railroad overpass, talked about since the 1920s, grew. Proposals were on the table to condemn and demolish most of the downtown area between Front Street and Hamilton Boulevard for a 35-acre superstore complex; Spring Lake was filled with silt and vegetation and flooding was a problem; and the impending construction of Interstate Route 287 promised to impact south side development and lure industry.
The House and Wording
Baldwin places a cozy house at the fork of the railroad tracks to symbolize the importance of family life, community spirit and religious unity. If the seal were to be redesigned today, the single-family one-story residence might be a sprawling multi-level condo/apartment complex that includes affordable housing units to satisfy Mt. Laurel obligations. The words in reverse lettering -- “vision, family, industry” -- sum up the theme.
Date of Incorporation
Governor Moore signed Senate Bill #216 on Wednesday, March 10, in front of a contingent of So. Plainfield representatives and media outlets. The date is officially recorded in “Chapter 7, Laws of 1926” of the State Legislature.
Happy 100th Anniversary, South Plainfield!