"As surveyed by Lieut. James L. Thompson in October and November, 1839. by order of Major Plympton"…

Photostatic copy.

Mss. note: Print of an old map, furnished by HQ 7th Corps Area, Omaha, Nebraska, November 1937.…

Original is number 540 in the cartographic records of the Bureau of Indian Affairs, Record Group 75, National Archives. …

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