1823–93, American historian, b. Boston. In 1846, Parkman started a journey along the Oregon Trail to improve his health and study the Native America...
1899–1980, Norwegian-American Antarctic explorer. Ronne graduated from college in Norway in 1922 and immigrated to the United States. His first of n...
1874–1954, American botanist, b. Genesee, New York. He received his Ph.D. at Harvard (1904) and was a member of the faculty until 1907. After severa...
1890–1971, American historian, b. Camp Point, Ill. After studying at the Univ. of Illinois, he followed a career in journalism until 1927. Teaching ...