Harmar's letter of Nov.

24, 1787, states the adult males of Kaskaskia and Cahokia at four hundred and forty, not counting those at St.Philip or Prairie du Rocher.

This tallies very well with the preceding.

But of course the number given can only be considered approximately accurate, and a passage in a letter of Lt-Gov Hamilton would indicate that it was considerably smaller.
This letter is to be found in the Haldimand MSS, Series B, Vol.

123, p.
53, it is the 'brief account' of his ill-starred expedition against Vincennes.