AnsetzungsformDouglas, John verwendet in: Integrated Authority File (GND), Germany
Scanned photograph which first appeared in Building News in 1890 [Unknown, Building News have undergone many buyers and regorganizations that complete records of their publishing 19th century photos are unlikely / King, Roger (6 January 2012, 00:05:34) John Douglas 1830-1911, Northwich and District Heritage Society -- Public domain -- http://commons.wikimedia.org/wiki/File:John Douglas (architect).jpg]