The Ruwersma family (missionaries to the United Kingdom) has created a database of Prophets Chambers in the Northeastern and Southeastern U.S. They also include links to other resources for places to stay. You can view their database by clicking here. The password for the site is rest.
Another resource for Prophets Chamber information is a Facebook group Missions to the World. Once you join the group you have the opportunity to comment and help others find a prophets chamber, as well as ask for help finding places to stay yourself.
Do you have any other Prophets Chamber resources you can share? If so, please leave us a note in the comments or email us at firstname.lastname@example.org.