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LEFFERTS TIDE MILL SANCTUARY INC

HUNTINGTON, NY · EIN 462044555 · Form 990EZ · FY2024 · NTEE C32 · Environment · Micro (<$100K) · leffertstidemill.org
revenue
$67K
expenses
$96K
net assets
$196K
employees
mission · from form 990

PRESERVE VAN WYCK LEFFERTS TIDE MILL

profile · synthesized from sources

Lefferts Tide Mill & Preserve is a nonprofit dedicated to preserving the 18th-century Van Wyck-Lefferts Tide Mill in Lloyd Harbor, New York, one of the best-preserved tidal grist mills in the United States. The organization conducts structural restoration, maintains the surrounding 17-acre nature sanctuary, and offers public tours and educational programming. It also hosts cultural events to support preservation efforts and raise public awareness of early American industrial technology.

named programs · 4 · from sources

What they call their work

Cultural Events
Hosts intimate performances like the "Grist for the Mill" cabaret to raise funds and awareness for preservation efforts.
Label Design Contest
Annual contest inviting artists and photographers to submit designs for a custom brew label, promoting public engagement with the mill’s heritage.
Public Tours
Guided tours of the tide mill offered in partnership with the Huntington Historical Society, providing educational access to the historic site.
Structural Restoration
Ongoing repair and preservation of the 18th-century tide mill, dam, bulkhead, and bridge to maintain historical and environmental integrity.
activities · 5 groups

What they do

  • Historic Building Restoration and Preservation 3 activities
    • Documentation of preservation projects
      Documents major restoration efforts, such as the 2021–2022 renovation of the Lefferts Tide Mill and dam, through dedicated video production to support education, fundraising, and historical record-keeping.
    • Preservation and restoration of the Lefferts Tide Mill and dam
      Conducts structural preservation and restoration of the 18th-century Van Wyck Lefferts Tide Mill and its associated earthen dam, including repairs to foundations, roofing, timbers, and water management systems. Activities include rebuilding stone and earthen walls, replacing failing roofs with period-correct materials, installing steel reinforcements, and restoring structural integrity after environmental damage.
    • Restoration of historic mill machinery and equipment
      Restores functional and historical elements of the mill’s mechanical systems, including the 18th-century swivel crane, main gear set, mill stone adjustment mechanism, and historic cider press. These efforts support partial mechanical operation and historical interpretation of the mill’s original functions.
  • Photography and Creative Arts Competitions 1 activity
    • Art and community engagement through label design contest
      Sponsors an annual label design contest for artists and photographers, with the winning image printed on a custom brew label produced by Six Harbors Brewing Company and celebrated at a public awards ceremony.
  • Nature Preserve Management and Public Access 1 activity
    • Environmental stewardship and biodiversity protection
      Maintains the Lefferts Tide Mill Preserve as a sanctuary for native and migratory waterfowl and as a contributor to regional biodiversity, integrating ecological conservation with historic site management.
  • Guided Historic Site Tours 1 activity
    • Guided public tours of the Lefferts Tide Mill and Preserve
      Offers 1.5-hour guided tours of the Lefferts Tide Mill and Preserve, including a boat ride from Gold Star Battalion Beach to Puppy Cove, wildlife viewing, historical narration, and distribution of an illustrated educational booklet to participants.
  • Historic Site Public Programming 1 activity
    • Hosting cultural and community events at the Preserve
      Hosts cultural performances and fundraising events at the Lefferts Tide Mill & Preserve, with events limited to 75 guests per evening to manage site capacity and enhance visitor experience.
financials · form 990EZ · fy2024
revenue
Total revenue$67K
Contributions & grants$64K96%
Program service revenue
Investment income$3K4%
Other revenue
expenses
Total expenses$96K
Program expenses
Admin / overhead
Fundraising
Salaries & benefits
Grants paid out
balance sheet
Total assets$196K
Cash
Investments
Liabilities
Net assets$196K
5 years on record · 2020–2024 · YoY revenue -43.4%
leadership · form 990 part vii · fy2024

Who runs it

board members · 8
  • CORINE PERROTA — DIRECTOR
  • KEVIN CONEYS — DIRECTOR
  • KURT DIETRICH — DIRECTOR
  • NOAH FINKEL MD — DIRECTOR
  • RICHARD DE LA SOTA — DIRECTOR
  • RICHARD HAMBURGER — DIRECTOR
  • ROBERT KISSAM — DIRECTOR
  • STUART WETANSON — DIRECTOR
relationships · 22

Who they work with

  • Abboff’s Partner — Preservation Sponsor of the cabaret event
  • Deborah and Carl DelPrete Partner — Founders Sponsor of the cabaret event
  • Dina & Peter Chase Partner — Heritage Sponsor of the cabaret event
  • Hoffman Grayson Loizides Vandrei Architects Partner — Supporting Sponsor of the cabaret event
  • Huntington Historical Society Partner — Collaborates on public access by offering guided tours of the mill prior to the pandemic.
  • Huntington Historical Society Partner — Collaborates on tour registration and offers discounted admission for its members.
  • Jalbert Productions International Partner — Produced the video documenting the 2021–2022 renovation of the Lefferts Tide Mill and dam.
  • Jonathan's Ristorante of Huntington Partner — Provides a special prix fixe dinner option for event attendees prior to performances
  • Kristen McCabe & Gregg Rechler Partner — Founders Sponsor of the cabaret event
  • Lori & Jeff Zankel Partner — Supporting Sponsor of the cabaret event
  • Risa and Noah Finkel Partner — Founders Sponsor of the cabaret event and performers involved in the program
  • Robert David Lion Gardiner Foundation Funder — Awarded multiple grants totaling over $150,000 for critical restoration work on the dam, bulkhead, weir gate, and mill structure.
  • Robert David Lion Gardiner Foundation Funder — Provided a $52,700 matching grant to support the bulkhead repair and weir gate restoration at the Lefferts Tide Mill.
  • Robert David Lion Gardiner Foundation Funder — Provided a matching grant to support dam restoration, roof installation, and structural repairs at the Lefferts Tide Mill.
  • Robert and Priscilla Hughes Partner — Preservation Sponsor of the cabaret event
  • Six Harbors Brewing Company Partner — Partnering to produce a custom brew featuring the winning label from the organization's art contest.
  • Susan and Roy Glaser Partner — Supporting Sponsor of the cabaret event
  • The Nature Conservancy Funder — Provided a $200,000 foundational grant in 2019 and transferred ownership of the 17-acre historic site to the organization.
  • Toby and Beverly Kissam Partner — Preservation Sponsor of the cabaret event
  • Tony’s Di Napoli Partner — Preservation Sponsor of the cabaret event
  • Town of Huntington Government — Provides a launch boat to ferry visitors from Gold Star Battalion Beach to the mill site.
  • US Department of the Interior Government — Dr. T. Allan Comp of the US Department of the Interior has provided a statement supporting the preservation of the mill.
strategies · 2

How they approach the work

Named approaches extracted from this org’s sources. Where others share an approach, follow it to see the full set of orgs running it.

  • Immersive Cultural and Environmental Education
    methodology: immersive historical and environmental education
    By combining guided historical interpretation, on-site access via boat, and immersive natural environment experiences, the organization enhances public engagement and learning, because direct, multisensory interaction with a historic site deepens understanding of its cultural and ecological significance.
  • Integrated Historic and Ecological Restoration
    methodology: integrated-historic-and-ecological-restoration
    By restoring historic infrastructure like the weir gate and dam using traditional techniques and materials, the organization preserves both the structural integrity of the 18th-century tide mill and the surrounding ecosystem, because functional historical systems can simultaneously support cultural heritage and environmental sustainability.