On Buffalo Architecture & History Website:

August Esenwein brief biography

James A. Johnson brief biography

Online buildings

List of building permits

Art Nouveau and Other Expressions: Rediscovering the Architecture of Esenwein and Johnson

Caitlin Moriarty, Esenwein & Johnson - Commercial Design

On Buffalo and Erie County Historical Society Website:

Art Nouveau and Other Expressions: Rediscovering the Architecture of Esenwein and Johnson A 2005 Exhibit at the Buffalo and Erie County Historical Society Museum

Buffalo and Erie County Historical Society Museum: Buffalo Architectural Index   Over 1000 buildings & their architects, in address order