Schroer, Blanche M., 1907-1998.

Schroer was a historian of the American West and was a recognized, though controversial, authority on the history of Sacajawea and the Lewis and Clark Expedition. She challenged the beliefs of Grace Raymond Hebard and the native Shoshone tribe that Sacajawea lived into old age and was buried in Wyoming. Schroer favored the theory that Sacajawea died in her mid-twenties. A prolific writer, Blanche M. Schroer received a Western Writers of America Spur Award and also did research on the life of Butch Cassidy and Josephine Baldwin.

Blanche M. Carlson (Schroer) was born December 23, 1907, in Gilbertville, Iowa, the daughter of Dudley and Mable Alma (Moore) Carlson. Blanche Schroer lived most of her life in the Lander Valley and the Fort Washakie area of Wyoming, working for Matt McGuire at the Post Trading Company for many years.

Blanche M. Schroer was a historian of the American West and was a recognized, though controversial, authority on the history of Sacajawea and the Lewis and Clark Expedition. She challenged the beliefs of Grace Raymond Hebard and the native Shoshone tribe that Sacajawea lived into old age and was buried in Wyoming. Schroer claimed that a woman, who lived to old age, named Porivo, took on the false identity of Sacajawea in Lander, Wyoming. Schroer favored the theory that Sacajawea died at Fort Manuel Lisa, South Dakota, in her mid-twenties and was buried there. A prolific writer, Blanche M. Schroer received a Western Writers of America Spur Award and also did research on the life of Butch Cassidy and Josephine Baldwin. She died July 4, 1998, in Riverton, Wyoming.