https://screenrant.com/yellowstone-timothy-reynolds-tribute/

From the Yellowstone pilot episode to the beginning of season 4, Timothy Reynolds served as the crew's best boy set lighting technician.

Did Yellowstone Just Reveal A 1923 Spinoff Character? (https://screenrant.com/yellowstone-patience-dutton-1923-spinoff/)

Born in 1931, Patience Dutton is a third-generation Dutton buried at the Yellowstone ranch. Is Patience Dutton going to be in the cast of 1923?