The ranch became known as Newhall Ranch after Newhall's death. Within this territory, he granted a right-of-way to Southern Pacific Railroad through what is now Newhall Pass, and he also sold them a portion of the land, upon which the company built a town they named after him: Newhall.
After Newhall's passing, the ranch was renamed Newhall Ranch. He had previously granted permission for the Southern Pacific Railroad to pass through what is now Newhall Pass and sold them a portion of the land, on which they built a town also called Newhall in his honor.