In its preview the day of the Jim Jeffries-Joe Choynski fight, the
San Francisco Examiner listed the weights as 217 lbs for Jeffries and
165 lbs for Choynski. These weights were repeated in the report of
the fight on 12/1/1897.
I think this should be either added to the database or someone needs to respond and say they will look further.
I found the weights for the James J. Jeffries-Gus Ruhlin fight that resulted in a 20-round draw on 1897-07-16. The Brooklyn Daily Eagle has Jeffries at 212 lbs and Ruhlin at 200 lbs even.