John was born about 1777. He passed away after 1806.
“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:
Therese, now the wife of Francis Roy
Benjamin, married to Elizabeth a Menominee Woman
Jacques, married to Margaret Brunet
Simeon married to Margaret Grignon
Felice, now the Wife dead
Juliettte [probably refers to Man-na-tee-see’s daughter, Julia Grignon]”
"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)
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.
Linda M. Waggoner (ed.), “Neither White Men Nor Indians: Affidavits from the Winnebago Mixed-blood Claim Commissions, Prairie Du Chien, Wisconsin, 1838-1839” (Roseville, Minnesota: Park Genealogical Books, 2002). Extracted from Territorial Papers of the United States, Wisconsin, 1836-1848. M236. “Special Files of the Office of Indian Affairs,” 1836-46. “Special File 161” (Roll 41). “Special File 190” (Roll 42). National Archives, Washington D.C., Documents on Microfilm, Records of the Bureau of Indian Affairs (Record Group 75).