For locations in Eastern Europe, the index generally categorizes them by Gubernia (province) rather than modern-day country. Place names are standardized to those of the late-19th, early-20th centuries, before the First World War.
Arizona
Azerbaijan
Brazil
Canada
Alberta
New Brunswick
Saskatchewan
Colorado
Connecticut
Windham
Courland
Bausk
Fridrikhshtat
Cuba
D.C.
Ekaterinoslav
Ekaterinoslav
Galicia
Bohorodczany
Czortkow
Husiatyn
Jaslo
Kalusz
Kolomyja
Krakow
Lancut
Mielec
Nadworna
Podhajce
Skalat
Sniatyn
Tarnobrzeg
Tlumacz
Gibraltar
Illinois
Pulaski
Kaluga
Zhisdra
Kaunas
Kaunas
Kharkov
Kharkov
Kherson
Odessa
Lodzkie
Lublin
Lublin
Mexico
Quintana Roo
Moldavia
Falciu
Netherlands
New Brunswick
New Mexico
Nizhniy Novgorod
Nizhniy Novgorod
Nova Scotia
Oklahoma
Washington
Oregon
Orenburg
Chelyabinsk
Perm
Perm
Podolia
Balta
Bratslav
Kamenets Podolskiy
Olgopol
Ushitsa
Vinnitsa
Preussen
Westpreussen
Rhodesia
Switzerland
Vaud
United Kingdom
Utah
Wisconsin