Seventy-two years' recollections of Wisconsin, by Grignon, Augustin, b. 1780
"[The author] Augustin Grignon was the last in a long line of French fur-traders that stretched back to Charles de Langlade, the first European to live in Wisconsin."
"He [Charles Langlade's son, Charles] was in the British Indian service at the capture of Mackinaw, in 1812, and acted as interpreter for the Ottawas."
And the British loss of the Revolutionary War did not disrupt the life of balance and harmony in the Old Up Country [Wisconsin] until the War of 1812. [Source]