Report on the Census of Porto Rico, 1899Henry Gannett, United States War Dept Puerto Rico Cen, Joseph Prentiss Sanger · First published 2015Open the Tome
A Revelation of the FilipinosJoseph Prentiss Sanger, Henry Gannett, Victor H. Olmsted · First published 1905Open the Tome
Census of the Philippine IslandsJoseph Prentiss Sanger, Henry Gannett, Victor H. Olmsted, United States. Bureau of the Census · First published 1904Open the Tome
Informe sobre el censo de Puerto Rico, 1899United States War Dept. Porto Rico census office, Joseph Prentiss Sanger, Henry Gannett, Walter Francis Willcox, Frank L . Joannini · First published 1900Open the Tome
