Dee ihe ga-eso paragraf a - Pflanze bụ nwa Otto Paul Pflanze (1885-1944) na Katrine Mills Pflanze (1886-1959). Ọ gara Maryville College na Mahadum Yale tupu agụmakwụkwọ ya gụsịrị akwụkwọ na Yale ka Agha Worldwa nke Abụọ kwụsịrị, ebe ọ jere ozi na Pacific Theater na Army Air Corps dị ka onye ọrụ ọgụgụ isi na-ede akwụkwọ agha. Mgbe agha ahụ biri, Pflanze rụrụ ọrụ na Ngalaba Na-ahụ Maka Ihe Ndị Na-eme ná Mba Ọzọ, ọ nọkwa n'ụgbọelu e ji ebuga ngwá agha na Berlin.
na-eso nnyefe ihe n'afọ 1948, tupu ọ maliteghachi akwụkwọ gụsịrị akwụkwọ na Yale. O nwetara PhD ya na 1950, ma kụzie na ụlọ ọrụ ndị a (edepụtara na usoro oge): Mahadum New York, Mahadum Massachusetts na Amherst, Mahadum Illinois, Mahadum Minnesota, Mahadum Indiana, na Bard College. Site na 1970 ruo 1971, Pflanze bụ ọkà mmụta bi na Institute for Advanced Study na Princeton, New Jersey. Site na 1976 ruo 1985, Pflanze bụ onye nchịkọta akụkọ nke American Historical Review, nke isi ụlọ ọrụ ya dị na Bloomington, Indiana.