OK, I'm not that mercenary, at least not to a fellow Freeper.
Look at the second line of the text it says "Colorado, on August 25 though 28,". It should of course say through".
Interestingly - as pointed out by JB Wiliams - the same typo occurs on both documents. So whomever made the change had in all likelihood access to the digital file.
Thanks for not making me sleepless.