John Flack Winslow (November 10, 1810 – March 10, 1892) was an American businessman and iron manufacturer who was the fifth president of Rensselaer Polytechnic Institute.
), he started his own business, making pig iron in Bergen and Sussex counties in New Jersey.
When Corning gained control of the Lulworth Iron company in Mount Savage, Maryland, he made Winslow the President.
After the naval board had not approved Ericsson's proposal for the ironclad warship, Griswold and Winslow met with President Lincoln personally to advocate for its construction.
Therefore, the Monitor remained the property of the de facto lien holder, John Flack Winslow.
The ship was launched 101 days from the signing of the contract, in time to defend the Union blockade during the Battle of Hampton Roads.
The Winslow Chemical Laboratory, built in 1866, was named in honor of his donation of half the construction cost and his enterprise on behalf of the Institute.
June 10, 1867, it was purchased by the John Flack Winslow, who remodeled the house, laid out the gardens and greatly improved the estate.
The amusement park, which operated from 1927 to 1941 included among other attractions, a roller coaster, ballroom, and dock for the dayliner.