Manhasset in Nassau County, New York — The American Northeast (Mid-Atlantic)
Onderdonk House
Photographed by Ian Lefkowitz, October 18, 2025
1. Onderdonk House Marker
This house, built in 1836 for Judge Horatio G. Onderdonk and his family, is one of the finest examples of Greek architecture on Long Island
Topics. This historical marker is listed in this topic list: Architecture. A significant historical year for this entry is 1836.
Location. 40° 47.645′ N, 73° 41.532′ W. Marker is in Manhasset, New York, in Nassau County. It can be reached from the intersection of Northern Boulevard and Strathmore Road. Touch for map. Marker is at or near this postal address: 1471 Northern Boulevard, Manhasset NY 11030, United States of America. Touch for directions.
Regionally, this marker is in the New York City Metropolitan Area and on Long Island. It is also in the American Northeast and in the Mid-Atlantic. Globally, it is in the North Atlantic Region, North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once New Netherland and also one of the original Thirteen Colonies.
Other nearby markers. At least 8 other markers are within walking distance of this marker: Quaker Meeting (about 600 feet away, measured in a direct line); Manhasset Friends Meeting House (about 600 feet away); Veterans of Foreign Wars Memorial (about 700 feet away); In Memory Of Those We Loved (approx. 0.2 miles away); Patriots Park (approx. 0.2 miles away); Manhasset Gold Star Honor Roll (approx. 0.2 miles away); Dedicated by the Manhasset VFW Post 5063 (approx. Ό mile away); Community Reformed Church Veterans Memorial (approx. 0.3 miles away). Touch for a list and map of all markers in Manhasset.
Also see . . .
1. A bit of background... (Onderdonk Landmark Society).
It is said that the Horatio Gates Onderdonk House in Manhasset is one of Long Islands(Submitted on October 20, 2025, by Ian Lefkowitz of New York, New York.)finest Greek Revival dwellings. It was recorded by the Historic American Buildings Survey in 1936 and entered on the National Register of Historic Places in 1980. The House is recognized as a Town of North Hempstead landmark. Owned and operated by the Strathmore Association Inc. since 1936, the House has undergone partial restoration in recent years. When the Onderdonk House was built in c. 1836, it was representative of a class of dwelling being built elsewhere on Long Island and in other localities within an easy commute of New York City. Many of these houses are now gone, giving the Onderdonk House added significance as one of the few examples of its type, left standing today.
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2. Judge Horatio Gates Onderdonk House (Historic American Buildings Survey). (Submitted on October 21, 2025.)
Photographed by Ian Lefkowitz, October 18, 2025
2. Onderdonk House Marker
The marker is located at the northern end of the house.
Photographed by Ian Lefkowitz, October 18, 2025
3. Onderdonk House
The southern view of the Greek Revival home. The house is now used for activities and special events.
Photographed by Ian Lefkowitz, October 18, 2025
4. Onderdonk House Landmark Marker
The Onderdonk House is a Designated Landmark by the Town of North Hempstead.
Photographed by Ian Lefkowitz, October 18, 2025
5. Onderdonk Family Plot
The Onderdonk family plot and Horatio Gates Onderdonk's final resting place is located nearby in the cemetery of the Reformed Dutch Church.
E.P. McFarland/HABS (courtesy Library of Congress), August 19, 1935
6. Judge Horatio Gates Onderdonk House
Credits. This page was last revised on October 21, 2025. It was originally submitted on October 20, 2025, by Ian Lefkowitz of New York, New York. This page has been viewed 66 times since then and 22 times this year. Photos: 1, 2, 3, 4, 5. submitted on October 20, 2025, by Ian Lefkowitz of New York, New York. 6. submitted on October 21, 2025. • Andrew Ruppenstein was the editor who published this page.
