Sidney Spence Culbert (1913 - October 28, 2003) was a psychologist and Esperantist. Born in Miles City, Montana, Culbert moved to Tacoma, Washington with his family in 1923 and lived in Tacoma and Seattle for most of his life. He extensively researched the number of speakers of various languages throughout the world (by stratified sampling), and contributed to the World Almanac's section on "Principal Languages of the World". Wikipedia
The definitive Wikipedia entry for Sidney S. Culbert. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Sidney_S._Culbert
The definitive Wikipedia entry for Sidney S. Culbert. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Sidney_S%2e_Culbert
