Kayser, Heinrich (1853-1940)(133)
Darmstaedter, Ludwig (1846-1927)(91)
Breslauer, B. H. (1918-2004)(27)
Martin Breslauer Inc. (New York, NY) (1977-)(25)
Hellmann, Gustav (1854-1939)(22)
Ravenstein, Ernst Georg (1834-1913)(22)
J.C.B. Mohr (Paul Siebeck) (1899-2005)(19)
Gesellschaft für Erdkunde zu Berlin (1828-)(17)
Peters, Christian A. F. (1806-1880)(13)
Faraday, Michael (1791-1867)(11)
Carus, Julius Victor (1823-1903)(10)
Kamnitzer, Heinz (1917-2001)(10)
Men & Women of the Time (London)(10)