Several of the Tillamook burns were started by loggers, or logging, from what I understand; same principle, they were not natural disasters. Logged out forests and adjacent areas are more vulnerable to fires, for various reasons, including things like slash piles and logging roads.  

The global temperature record is accurate; raw temperature data from urban stations is adjusted to account for urban heat island effect and has been since the mid-20th century. Did you think that scientists would miss this, somehow? Don't be silly.

And climate change in the PNW is occurring in a different setting than it did in the 19th century. Studies show, for instance, that fire season is now OVER TWO MONTHS LONGER than it was in the mid-20th century. Heat is only part of this. Thanks for the source; climatology was in its infancy then, though. There were some strange ideas circulating back then.