Statistics for occurrence #1 of “St. Petersburg” in entry diplomatic-service of Harper's Encyclopedia of United States History:

...nd Minister Plenipotentiary, Lima. John N. Irwin, Envoy Extraordinary and Minister Plenipotentiary, Lisbon. Charlemagne Tower, Ambassador Extraordinary and Minister Plenipotentiary, St. Petersburg . Hamilton King, Minister Resident and Consul-General, Bangkok. Bellamy Storer, Envoy Extraordinary and Minister Plenipotentiary, Madrid. William W. Thomas, Jr., Envoy Extra...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
St. Petersburg (Russia) 226 45 10 5 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.