He does go by Troy Sia on Facebook
https://www.facebook.com/troy.sia.1 , as he has to use a surname of some sort. A friend commented "I like the use of Sia for the required last name but you'll always just be Troy to me."
On his Facebook he says he is from Kapaa, Hawaii, now living in Cyril, Oklahoma. Co-Founder/Co-Director at Sia: The Comanche Nation Ethno-Ornithological Initiative.
He did something on Comanche Moon, the prequel to Lonesome Dove. At least he has photos of himself on the set. I assume he was with William Voelker (founder of Sia: The Comanche Nation Ethno-Ornithological Initiative), who is listed as an advisor. I don't see our Troy listed in credits
http://www.imdb.com/title/tt0783328/fullcredits#castI hoped his full name was listed on incorporation records, but it is not. This info doesn't have a link, there is a $ charge for the info:
Filing Number:
2112030051
Entity Name:
SIA, INC.
Status:
In Existence
Entity Type:
Domestic Not For Profit Corporation
Jurisdiction:
Oklahoma
Original Filing Date:
Feb 17 2004
Duration:
Perpetual
Entity Address:
N/A
Name:
WILLIAM C VOELKER
Effective:
Oct 16 2006
Address:
106 TEXAS AVE
BOX 341
City,State,ZipCode:
CYRIL OK 73029
PRINCIPALS
Name Title
WILLIAM C KELLOUGH INCORPORATOR
TERESA M BURKETT INCORPORATOR
STEPHEN A SCHULLER INCORPORATOR