See quot. 1855.

1

1842.  The children were never tired of watching the vagaries of the little chipmonk as he glanced from branch to branch with almost the swiftness of light.—Mrs. Kirkland, ‘Forest Life’ (Bartlett).

2

1854.  

          The chipmunk, on the shingly shagbark’s bough,
Now saws, now lists with downward eye and ear,
  Then drops his nut, and, cheeping, with a bound
  Whisks to his winding fastness underground.
J. R. Lowell, ‘An Indian-Summer Reverie.’    

3

a. 1855.  This is generally known as the striped squirrel, on account of his having two streaks that run (if they don’t walk) along his back, commencing at the neck and ending somewhere below zero.—Dow, Jun., ‘Patent Sermons, The Chipmonk,’ iv. 231.

4

1861.  

        An’ here I be ez lively ez a chipmunk on a wall,
With nothin’ to feel riled about much later ’n Eddam’s fall.
Lowell, ‘Biglow Papers,’ 2nd Series, No. 1.    

5