Lecture
Riverside Moguls, Part 3
Wealth and Power in New York's Hudson Valley: Five Sleeping Giants
Sunday, February 22, 2026, 1 pm
The Historical Society of Rockland County invites you to join us for
RIVERSIDE MOGULS, PART 3
Wealth and Power in New York's Hudson Valley: Five Sleeping Giants
When:
Sunday, February 22, 2026,
1:00 pm SHARP
Where:
Lower-level Community Room, HSRC History Center, 20 Zukor Road, New City
Price:
$5.00
(Space is limited, and reservations are required)
The latest addition to the Riverside Moguls series focuses on five Hudson Valley estates tied to industry that generally are not open to the public and thus have not been subject as much to popular attention.
They include Eleazar Lord’s Piermont Castle and the Erie Railroad story; Sloatsburg’s “Table Rock” estate of both Alexander Hamilton and J. P. Morgan lineage; Charles Oliver Iselin’s All View estate of New Rochelle; Margaret Carnegie’s Migdale Estate of Millbrook; and the MacKenzie legacy of Sullivan County with Glen Spey’s Burn Brae Estate.
About the speaker:
Alex Prizgintas,
a graduate of Marist College with degrees in Hudson River Valley history and public administration, has published articles in the Hudson River Valley Review, New York Archives Magazine, and Orange County
Historical Society Journal on topics such as Hudson River railroad history, Orange County’s dairy farming history, and the region’s early settlers. He is the town historian for Woodbury, NY, and president of Orange County’s Woodbury Historical Society.
To reserve your seat, click on the Eventbrite logo:
Or download and fill out the PDF form below and return it, with payment, by
January 8, 2026,
to Historical Society of Rockland County, 20 Zukor Road, New City, NY 10956:
Or call the Museum Office at (845) 634-9629 Wednesdays-Fridays & Sundays, 12-4 pm.
Please note: Space is limited for this lecture. Reservations are required. A waiting list will be compiled, and available spaces will be filled on a first-come, first-served basis.
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The Historical Society of Rockland County is a nonprofit educational institution and principal repository for original documents and artifacts relating to Rockland County. Its headquarters are a four-acre site featuring a history museum and the 1832 Jacob Blauvelt House in New City, New York. www.RocklandHistory.org.