Here is a link to the society's website for more information on them. Unfortunately, Fr. Richard was not able to stay around for the Sunday evening Mass, so I attempted to preach on behalf of his society, and I have included the video of the homily below.
Here is a link to more information on the life of Fr. De Smet,
and here is a link to Amazon.com in case you want to buy the book. It is definitely
worth the read!