“Of the sisters [of Old Decorah], three married Indian husbands; one married a trapper named Dennis D. Riviere, and afterwards to Perrish Grignon; the other to John B. L’Ecuyer, the father of Madame Le Roy.” (de la Ronde, 347)
“… deponent Louisignon knows that they were married by Charles Rayon about the Year seventeen hundred & ninety seven. … deponents have known said Children since their birth, and always knew them as, and believed them to be the Children of said Ecuyer and Man, na, tee, see, which said children are as follow:
"At the western end of the Portage [in 1828], there was a warehouse built; and three houses where Perrish Grignon and his wife, sister of the chief De-kau-ry, were living; the second one was occupied by his son, Lavoin Grignon; the other one by J. B. L’Ecuyer." (de la Ronde, 347)
He passed away after 1806.
Norton William Jipson, Story of the Winnebagoes (Chicago: The Chicago Historical Society, 1923) 226.
John T. de la Ronde, "Personal Narrative," Wisconsin Historical Collections, 7 (1876): 345-365.