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Paper written and submitted to the Wyoming Writer's Project as a social estimate of Casper, Wyoming by Joseph Orr in 1940. This copy of Orr's work was prepared from a microfilm copy at the State Archives.

For the fourteen-month period from March 2, 1863, to May 26, 1864, the area that is now Wyoming was part of Idaho territory. On the same 1864 date, Montana became a territory. Sparse population made these jurisdictional changes of little importance.