The Greenes are Tony and Taranda Greene, John Jeffrey and Jeff Snyder.
Check out their website to get more information and hear them sing.
Calvary's Voice includes Bryan Hatton, Daniel Crews and Greg Chapman. Join them on an Alaskan cruise on their website.
Here are a couple of photos. The children belong to Tony and Taranda. Tony had quite a story to tell and Taranda took the idea of being "one flesh," part of the marriage ceremony, a bit further.