1855 letter from L. H. Cook to D. H. White in Iowa that mentions near the end: "There is some talk about the Indians being trouble some and scares some of the Women almost into a duck fit it has been reported that there is 6000 at the Counsul bluff but it does not interupt me till I know more about it . . .
This interesting letter is up for sale on Ebay Item number: 350204519314.