The following are abbreviations used throughout the database

AABN – American Architect and Builders News (1876 – 1909)
bp – City of Cleveland Building Permits (1889 – present)
cd – City Directories
mps – Mary Peale Schofield files – Western Reserve Historical Society
Inland – Inland Architect
Intestate – Interstate Architect and Builder (1899 – 1902)
nd – no date
NRHP – National Register of Historic Places
OAB – Ohio Architect and Builder (1903 – 1909)
OAEB – Ohio Architect, Engineer and Builder (1910 – 1919)
ohi – Ohio Historical Inventory form
PD – Plain Dealer