Portland baseball was not limited to the Portland Beavers of the Pacific Coast League or to Portland's entries in the early Pacific Northwestern League. Towns, factories, and schools also boasted teams, as seen in this gallery.
The gallery shows perhaps the earliest known program for an Oregon baseball game, an 1894 match between the Multnomah Amateur Athletic Club team and Stanford at Multnomah Field.
Identifying old sports images requires a few assumptions: a name on a jersey identifies the locale or team; for a postcard, a postmark identifies the locale or team where no other information is available; and handwritten information on an image is accurate absent other facts.