The sites you list all are of him working with Christian ministries. He's on Mechi Garza's Nuage site advertising his flute gathering, but that's not quite the same as working with her group.
Found this.
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http://www.newgatherings.com/index.cfm?i=1155&mid=22&smgroupid=10884native circle leaders can be contacted at:
Silverhawk`s Flute Gathering (Doc Green "Silverhawk") 813-763-2118
Native American Indian Christian (church) Circle
Doc Green "Silverhawk" 813-763-2118 -- meets the 2nd & 4th Sunday of each month in Thonotosassa
We are honored to work with:
Native Ministries of the Florida United Methodist Conference
Partnership with Robert Soto , McAllen, TX
Partnership with Randy Woodley (
www.eagleswingsministry.com)
Partnership with Robert Francis (Mid-American Indian Fellowships)
Partnership with Ray Levesque of New Gatherings, Vancouver, Canada (
www.newgatherings.com)
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Soto is pretty well known in the NDN community in south Texas.