1883? More like 1853...
Maybe I missed some dialogue back in episode one, but why didn't they just take the train? Transcontinental rail service had been established to Sacramento back in 1859, and travel by rail was common by 1883. As far as the cost of a ticket, it would have been cheaper than buying a wagon and team of horses, plus supplies for a 2000-mile trek across the great plains. AND, without all the dying and stuff. Need to get across the mountains before winter? No problem.
Also, they had built a suspension bridge across the Brazos back in 1870, outside Waco. You could look it up if interested. My point is, the American West had changed remarkably in the 30-year span of time between 1853 and 1883. The Donner party had their tailgater back in 1847. This show is really an 1850s setting, not 1883. Everything makes sense if you set it back 30 years. Well, everything except Elsa taking a Comanche lover and her dad being cool with it.
But then, you don't get the Civil War PTSD back story for the main characters, and I'm guessing (never having watched the show) that at some point during 'Yellowstone' Kostner makes a statement about how his great granddaddy came out there by wagon train back in 1883 and his family has held that land ever since. So, 'canon'. And they're locked into the date. But none of this story makes any sense, really, for 1883.
I liked the 'Thomas' character, and it was nice that he made it to Oregon. But again, the Willamette Valley had been well populated by 1883, and it was not the pristine wilderness they depicted, where Thomas and his white common-law wife and her two sons could stake out a homesteader claim and live in peace. Oregon received statehood in 1859, and in 1876 had built a three-story brick capitol building with a giant brass dome on top, right smack dab in the middle of the Willamette Valley, in the city of Salem.
Here's a fascinating and disturbing little nugget from history. What else Oregon had was, a 'Black Exclusion' clause written into their state constitution, prohibiting black people from moving to or settling in their lovely state. Although technically invalidated by the 14th Amendment to the U.S. Constitution, it remained on Oregon's books until 1925. 'Starbucks' is probably not real proud of that, but it's true nonetheless. I don't see that as a happy ending for Thomas.
My point is, if Taylor Sheridan wants to write about history, he should start by reading some of it.
Also, I'm not sure how a group of German immigrants wound up in East Texas in 1883. There was an immigration station in Galveston, but it didn't open until 1906.