Checking in OED to remind myself of the earliest appearance of ‘honest injun’ (1876, although I see that was antedated to 1872 when we covered the phrase here), I came across an interesting sense of the word grist in this cite:
1853 Ibid. (ed. 2) I. iii. 24 Thur’s a mighty grist o’ venturin’, I heern; beats Injun fightin’ all holler.
Turning to grist, n, 2, I find:
d. U.S. A ‘lot’, number, or quantity (of).
1832 J. K. PAULDING Westward Ho! I. 77 There has been a mighty grist of rain lately up above. 1840 HALIBURTON Clockm. Ser. III. xviii, Some smart grists of rain has fell. 1848 J. F. COOPER Bee-hunter I. iii. 80 There’s an onaccountable grist on ‘em [bees]. 1852 Traits Amer. Humour I. xxvii. 305, I..got pretty considerable soaked by a grist of rain. 1881 S. P. MCLEAN Cape Cod Folks xviii. 295 ‘Grists on ‘em, this year!’ he said. ‘Heaps!’ Aunt Patty responded. 1906 Springfield (Mass.) Weekly Republ. 8 Feb. 9 A good-sized grist of matters was presented in the House last week under suspension of the rules.
Completely new to me. It isn’t marked as obsolete, although as this could well be an older unrevised entry it may have fallen into disuse since then. Is it in fact still current anywhere in the US?