See the first quotation.

1

1827.  A mocock is a little receptacle of a basket form, and oval, though without a handle, made of birch bark, with a top sewed on with wattap, (the fine roots of the red cedar, split,) the smaller ones are ornamented with porcupines’ quills, died red, yellow, and green.—Tho. L. McKenney, ‘Tour of the Lakes,’ p. 194 (Balt.).

2

1840.  The Indians bring in immense quantities [of whortle-berry] slung in panniers or mococks of bark on the sides of their wild-looking ponies.—Mrs. Kirkland, ‘A New Home,’ p. 148.

3

1842.  The mococks or bark panniers in which [the Indians] brought the sugar to market, were pretty objects at least.—The same, ‘Forest Life,’ ii. 285.

4

1856.  Vingt cent mille mococks full of feu d’enfer!—Knick. Mag., xlviii. 407 (Oct.).

5