• Wednesday-Sunday: 9 am-5 pm
  • Closed Thanksgiving Day, Easter, Christmas Eve, Christmas Day and January 1st
  • Guided tours on the hour starting at 10 am
  • No tours between 12-1 pm
  • Visitor’s Center
  • Parking
  • Group Tours
  • ADA accessible site and restrooms
  • Gift Shop
  • Adults - $5
  • Children (ages 6-16) - $3
  • Free for members, patrons and children under six

Dey Mansion Washington's Headquarters

199 Totowa Road, Wayne, NJ 07470


The Dey Mansion Washington’s Headquarters is a Colonial Era house museum dedicated to preserving and interpreting the history of the Dey family and the important role their two-story Georgian home played as General George Washington’s headquarters during the summer and fall of 1780. Today, visitors are transported back to Colonial America by the home’s historic charm and manicured gardens. Tour the mansion that now sits nestled on the grounds of Preakness Valley Park, visit the Forge for a blacksmith demonstration, explore the nearby Springhouse and Smokehouse, or attend an educational program that explores 18th Century life in America. As a further testament to its historical significance, Dey Mansion is listed on the State and National Register of Historic Places. The museum also offers 90-minute school programs on Monday-Friday from 9:30 am-2:30 pm. Using objects, images and documents, instructors encourage students to actively participate in their own learning.


  • Hop on an hour-long guided mansion tour to experience life in the Dey household
  • Tour the restored Olmstead Gardens
  • Attend a lecture or cooking demonstration, among other hands-on events and programs
  • Catch a blacksmith demonstration at The Forge on property
  • Explore the property’s Smokehouse and Springhouse

Journey through Jersey strives to have the most up-to-date information, but always check with the site itself before planning a visit.