Bennett (d.1904) was married to Phoebe Jane Noble (d. 1913) in 1871 and moved to what is now Carbon Conty, Wyoming around 1874. Bennett operated a freighting and ferry business south of Saratoga, Wyoming. Edwin and Phoebe had 2 daughters, Edna (b. 1875) and Nellie (1878-1929).
Edna was married to Robert Campbell (b. 1878) in 1903 and they operated a sheep ranch. Nellie Bennett was married to Duncan Clark, the foreman of the Iron Mountain Ranch and Cattle Company of Laramie County, Wyoming in 1905. Clark was a friend of Tom Horn, a professional gunman hired by cattlemen to prevent cattle rustling, who was hung in 1903 for allegedly murdering a 14 year old boy. Clark died in a hunting accident in 1908 and Nellie remarried that same year to James B. Grieve (b. 1876).
From the description of Family Papers, 1883-1933. (University of Wyoming, American Heritage Center). WorldCat record id: 27409376