John Adam Quackenbush (October 15, 1828 – May 11, 1908) was a U.S. Republican politician from New York.
John A. Quackenbush was born in Schaghticoke, New York on October 15, 1828. He was educated locally, graduated from Stillwater Academy and became a farmer, also becoming active in other ventures including a lumber business.
A Republican, he was Schaghticoke's Town Supervisor from 1860 to 1862, also serving as Chairman of the Rensselaer County Board of Supervisors. Quackenbush was a member of the New York State Assembly (Rensselaer Co., 2nd D.) in 1863. From 1873 to 1876 Quackenbush was Sheriff of Rensselaer County.
Quackenbush was elected as a United States Representative in 1888 and again in 1890, serving from March 4, 1889, to March 3, 1893.[1] He was an unsuccessful candidate for reelection in 1892, afterwards living in retirement in Schaghticoke.
He died in Schaghticoke on May 11, 1908, and was buried in Schaghticoke's Elmwood Cemetery.