No photograph
on file
Est. 1855
Museum / Historical Site

Seneca Falls Historical Society (Becker Mansion)

Italianate home built 1855 by Edward Mynderse, expanded into a 23-room Queen Anne mansion, now the Seneca Falls Historical Society; staff report Mynderse pranking visitors and Irish domestic worker Mary Merrigan haunting her attic room.

55 Cayuga Street, Seneca Falls, NY 13148

Research updated September 2026

Age

All Ages

Cost

$

Museum admission applies; October Haunted Mansion Tours $50 per person ($10 discount for members). Check sfhistoricalsociety.org for current schedule.

Access

Limited Access

Three-story Victorian mansion; stairs throughout

Equipment

Photos OK

Doors held closed from inside (attributed to Mynderse)Pictures turned to face walls (attributed to Mynderse)Female figure looking from attic bedroom window (attributed to Mary Merrigan)Smell of fresh bread and molasses cookies in kitchen (attributed to Mary Merrigan)Banging pots and pans in kitchenUnexplained activity in attic bedroom

The Becker Mansion's paranormal tradition is built around two figures whose connection to the house is historically grounded. Edward Mynderse built the original 1855 structure on the site and reportedly has not accepted subsequent alterations. Staff accounts describe doors held shut from the inside and pictures turned to face the wall—specific, low-grade disturbances that the building's tradition interprets as Mynderse objecting to the renovations that transformed his Italianate home into a Queen Anne mansion after the Partridge family took over in 1875. The parlor and dining room, which are in the added sections, are where the Mynderse activity is reported most often.

Mary Merrigan was the longest-serving domestic employee of the Becker family and lived in the third-floor attic room during her years of service. Two categories of phenomena center on her: visual sightings of a woman looking out of her bedroom window, and olfactory reports—employees describing the smell of fresh bread and molasses cookies baking in the mansion's kitchen. Staff describe the kitchen as one of the most active areas for this type of sensory report. Paranormal investigators conducting formal sessions at the mansion consistently note the attic bedroom as the area producing the most documented anomalous activity.

The mansion's annual October Haunted Mansion Tours use costumed reenactors to portray these figures—Mynderse, the three Beckers, Mary Merrigan, and others—in a living-history format rather than a theatrical horror event.

Notable Entities

Edward Mynderse (1855 builder; reportedly dislikes post-ownership renovations)Mary Merrigan (Becker family nanny and housekeeper; longest-serving; attic resident)

Plan Your Visit

2 ways to experience
Guided Tour Booking Required

Haunted Mansion Tour (October)

Annual living-history ghost tours every Tuesday in October. Staff and volunteers portray former residents of the mansion including Edward Mynderse, three Becker family members (Catherine, Norman, and Florence), and Mary Merrigan. Two sessions: 5–8pm and 9pm–midnight. Cost $50 per person; $10 discount for Historical Society members. Reservations required.

Duration:
3 hr
Age:
All Ages
Booking now· through Oct 31· verified September 2026Seasonal: Oct 1 to Oct 31 Book this experience
Self-Guided Visit

Museum tour

Regular guided tours of the 23-room Victorian mansion covering Seneca Falls history, the Mynderse and Becker family stories, and the building's architectural evolution from Italianate to Queen Anne. Tours start on the hour; last tour at 3pm.

Duration:
1 hr
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Sources & Further Reading

Every HauntBound history is researched from documented sources. We clearly separate verified historical fact from paranormal folklore.

  1. 1.discoverseneca.com/blog/post/spooky-seneca-county-chronicles-the-haunted-seneca-falls-historical-society
  2. 2.wandercuse.com/dare-to-explore-these-haunted-places-in-seneca-falls-ny
  3. 3.fltimes.com/lifestyle/looking-back-the-women-who-kept-the-becker-mansion-humming/article_b98de519-c1af-4a37-843f-ea699d1e16ff.html

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Frequently Asked Questions

Is Seneca Falls Historical Society (Becker Mansion) family-friendly?
Ghost tours are theatrical living-history events, not horror experiences. All ages welcome. Stairs throughout the three-story mansion. Overall family fit: High.
How much does it cost to visit Seneca Falls Historical Society (Becker Mansion)?
Museum admission applies; October Haunted Mansion Tours $50 per person ($10 discount for members). Check sfhistoricalsociety.org for current schedule.
Do I need to book in advance?
No advance booking is required, but checking availability is recommended.
Is Seneca Falls Historical Society (Becker Mansion) wheelchair accessible?
Seneca Falls Historical Society (Becker Mansion) has limited wheelchair accessibility. Terrain: Three-story Victorian mansion; stairs throughout.