

A pioneering miller and settler whose foundational work in colonial New Jersey created a direct ancestral link to a U.S. President.
Jonathan Singletary Dunham was a man of practical ambition in the raw, early world of American colonization. Born in Massachusetts in 1640, he moved south to the newly established township of Woodbridge, New Jersey, around 1667. There, he wasn't just a farmer or landowner; he was an essential infrastructure builder. His construction of the first gristmill in the colony was a community-defining act, transforming local agriculture by allowing settlers to grind their grain into flour. This mill became a social and economic hub. Dunham served in various civic roles—constable, town clerk, judge—helping to establish the framework of daily life and law. His lasting, if unintended, legacy lies in his lineage: through a direct paternal line, he is the 8th great-grandfather of President Barack Obama, connecting the story of America's founding to its most symbolic modern chapter.
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He was originally named Jonathan Singletary but adopted the Dunham surname later in life.
His mill was located on the Rahway River and was a landmark for early New Jersey.
He was involved in several legal disputes over land and mill rights, common in frontier settlements.
Genealogical research confirmed his connection to President Obama's mother, Stanley Ann Dunham, in the 21st century.
“A mill needs water, a town needs a road, a man needs land.”