|Mother Bethel AME Church, Philadelphia|
There is additional information about the California Craftsmen churches at the website of an organization called Partners for Sacred Places.
In 2003, the US National Trust for Historic Preservation listed 'Urban Houses of Worship', collectively, among the most endangered historic sites in the United States.
Partners for Sacred Places, with regional offices in Texas, Pennsylvania, and Chicago Illinois, are committed to helping historic sacred places "remain a rich and vital part of the social fabric of a community. Partners helps congregations leverage existing and new resources, solidify their continued relevance, and ensure their own sustainability."
They offer training, technical assistance and capital improvement grants, and an information center with resources for congregations in historic buildings, including articles like The Repair and Maintenance of Bells and their Fittings, Fire Alarm Systems in Historic Places of Worship, strategies for adaptive reuse, and renovation case studies.