Ferndale is a settlement in New York, USA. By 1938, Henry Walton Jones, Sr. was living in Ferndale at 25 Pine Road.
Behind the scenes
In Indiana Jones and the Last Crusade the address of Henry Jones, Sr. — which can be read in full on screen for one second on the mail Indiana Jones moves to look at Henry's photograph — is written as "Fermdale". Indiana Jones and the Mystery of Mount Sinai has the correct spelling of the real Ferndale, located in Sullivan County.