Here is a quote from Retracing the Elusive Footsteps of a Secretive History:
Though buildings throughout the city are often thought to have been part of the escape route north, finding documents that provide proof is extremely difficult. “It’s incredibly rare that you can substantiate it,” said Andrew Berman, executive director of the Greenwich Village Society for Historic Preservation. “Locations were secretive by their very nature.”
Despite the documentation Ms. Luskin collected, No. 339 could not originally be considered for designation as a landmark because a building permit had been issued for the construction project. However, construction is at a standstill; according to Kate Lindquist, a spokeswoman for the Department of Buildings, the permit for construction of the penthouse is being revoked, in part because an agency review determined that the architectural plans did not comply with building and zoning codes.
The Landmarks Preservation Commission is currently evaluating No. 339 to see if it is eligible for designation as a landmark, news that will no doubt delight some local residents.
“Being one of the few African-Americans on the block, I have an emotional connection to this history,” said Curtis Jewell, a 55-year-old truck driver for the Postal Service who has lived in Ms. Luskin’s building for 10 years. “You have a lot of cultural history in New York that money seems to want to push out of the way.”