McArthur And Cass

On the 14th, Hull ordered McArthur and Cass to march with a considerable force to the River Raisin, by an inland trail running back from the border, by the way which has since been known as the Ypsilanti and Tecumseh trail, striking the Raisin some distance up, at Godfroy's trading post.

1826 Map Of Michigan Territory (LOC)
Ypsilanti at the top middle of map; River Raisin at the lower right of map

This road had been taken by General Wayne when he first came to Detroit. Captain Brush had been directed, on the 14th, to go up and meet them. On the 15th, Brock unmasked his battery, and sent over a demand for a surrender, coupled with the stereotyped threat, that if resisted, he could not control the Indians.  [Source]

Cass Papers At The Clements Library

Taken from the University Of Michigan's Clements Library's Finding Aids:

Abstract: "The Lewis Cass papers contain the political and governmental letters and writings of Lewis Cass... . At the outbreak of the War of 1812, he enlisted as a colonel in the 3rd Ohio Infantry under General William Hull."

"War of 1812 items include 16 receipts of payments to soldiers for transporting baggage, a payment of Cass' troops approved by Secretary of the Treasury Albert Gallatin, and a report made up of eyewitness accounts of General Hull's surrender at Detroit (September 11, 1812)."

Harrison's Contemporary Account

From Penn State's digital collections online. 

Lewis Cass, Military Governor

Source

Lewis Cass was born at Exeter, New Hampshire, October 9, 1783.  Was appointed military governor of the territory of Michigan, October 14, 1813, and the following year made permanent governor, with William Woodbridge as secretary.  The war of 1812-15 had but closed, the population had been scattered and was still exposed to the ravages of the hostile Indians.  A brave, sagacious and firm had was therefore needed to restore order and confidence, as well as to rebuke outrages perpetrated by the English authorities in Canada under the plea that they had a right to invade the territory in search of and arrest deserters from their army. [Source]

See the biography of Lewis Cass here.

Wikipedia has places named after Lewis Cass.