Dupuis-Dupris-Dupree Family saved the last of the buffalo from extinction.

In 1883 (or possibly earlier) Fred and some of his sons and possibly Basil Clement (Claymore) went on a buffalo hunt for some buffalo calves in order to start a herd to preserve the species from extinction.
By this time the great surrounds of the past were over and we can imagine that the desire to preserve at least a few of these animals so necessary, and so Sacred to the Tetuwan people, was strong.
The group headed northwest from Cheyenne River, and these men were gone for many months and in Montana or near Slim Buttes (reports differ), they located a small herd. They finally secured five calves, (other reports were nine buffalo calves), which were loaded onto the wagons brought for that purpose. The buffalo calves were taken back to pure-blood buffalos. By the time of Fred’s death in 1898 the herd had grown considerably, and was purchased by James (Scotty) Phillip of Fort Pierre.
By 1918 (the herd) had increased to approximately 500 head. The state of South Dakota purchased 46 of these buffalo and transferred them to the State Game Park in Fall River County.
Hearsay has it that Scotty Phillips sold the buffalo to other states and parks also, spreading the original Dupris stock back into many areas where the buffalo once roamed free by the millions.