Is this fiction?

Google Alerts reported the following new post:

"NATIVE AMERICAN CHIEF OFFERS AID TO CENTRAL PACIFIC RAILROAD" 1864

What is this? Does this make any sense? Is it entirely made up?

W. A. Bradley Union Pacific Photo Car family image

From: "Chickwagon" chickwagon@gmail.com

Your amazing site was such a help in understanding a few photos I was trying to identify and date. I thought you might enjoy these images, as I scanned both sides of my photocar portrait. These were in an album that was from families who lived in Stayton, Marion County, Oregon, with relatives in Dayton, WA; Hanford, CA; and Sacramento, CA. I assume this photo was from Salem, OR, since the advertisement on the back refers to an office in Portland. Please let me know if you can add any additional information. I think I must have cropped the border of this, but retained the name "W.A. Bradley". ...

—Barb C.