This 2-parter is the last of 7 episodes for Jeremy Slate, including another 2-parter, The Raid: Part 1 (1966) and The Raid: Part 2 (1966).
The year of this episode is about 1875 and the gold Maggie has hidden in the wagon is valued at $48,000. That money would be more than $1,134,000 in 2020.