the total population, tributary to Detroit was 2,000. It may have been
over this. Any attempt to estimate this creole population perforce
contains much guess-work.

10. State Department MSS., No. 150, Vol. III., p. 89.

11. _Do_ Harmar's letter.

12. State Department MSS, No 30, p 453. Memorial of François
Carbonneaux, agent for the inhabitants of the Illinois country. Dec 8,
1784. "Four hundred families [in the Illinois] exclusive of a like
number at Post Vincent" [Vincennes]. Americans had then just begun to
come in, but this enumeration did not refer to them. The population had
decreased during the Revolutionary war, so that at its outbreak there
were probably altogether a thousand families. They were very prolific,
and four to a family is probably not too great an allowance, even when
we consider that in such a community on the frontier there are always
plenty of solitary adventurers. Moreover, there were a number of negro
slaves. 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. He says "On taking an account of the Inhabitants at this
place [Vincennes], of all ages and sexes we found their number to amount
to 621, of this 217 fit to bear arms on the spot, several being absent