First show where bank manager Harry Bodkin is played by Roy Roberts who continued in the recurring role till the end of the series.
The story begins with a flashback to 1858 in Red Water, Texas, then resets to Dodge City 17 years later in 1875.
The date of this entry according to the character of Matt Dillon's telegram was May 8th, 1875, almost 88 years to the day before this was first broadcast on May 4th 1963.
Although Matt Dillon indicates that he's 35 years old since Dan York saved him 17 years earlier when Matt was 18, that would make Matt 35, but James Arness was about 40 years old when this episode was filmed.