The second season was a critical and commercial failure, and as a result, the show was cancelled.
This show is often called an official Little House on the Prairie spin-off, but as it does not feature any characters from LHOTP and has a different time period, it is not. However, apart from featuring two previous stars of that show (Merlin Olsen and Moses Gunn) plus other guest stars, it was created, written, produced, and directed by Michael Landon and several other regular "Little House" creatives, for NBC.
Murphy's dog was named "Mine".
Merlin Olson appeared with Katherine Cannons husband Dean Butler in Little House on the Prairie