Ober, Frederick A.

Vasco Nuñez de Balboa

Ober, Frederick A.

"Old Put" The Patriot

Ober, Frederick A.

Spain

Ober, Frederick A.

Amerigo Vespucci

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The Story of North American Discovery and Exploration

Olson, Julius E., Hale, Edward Everett, Hodges, Elizabeth, Ober, Frederick A., Leacock, Stephen, Colby, Charles W., Janvier, Thomas A.

The Great Explorers of North America: Complete Biographies, Historical Documents, Journals & Letters

Leacock, Stephen, Hale, Edward Everett, Olson, Julius E., Janvier, Thomas A., Ober, Frederick A., Colby, Charles W., Hodges, Elizabeth

The Great North American Explorers

Leacock, Stephen, Hale, Edward Everett, Olson, Julius E., Janvier, Thomas A., Ober, Frederick A., Colby, Charles W., Hodges, Elizabeth

A Discovery of the New World

Leacock, Stephen, Hale, Edward Everett, Olson, Julius E., Janvier, Thomas A., Ober, Frederick A., Colby, Charles W., Hodges, Elizabeth