Census 2000 pl 94 171 techdoc
VTVermont WA Washington WI Wisconsin WV West Virginia WY Wyoming SummaryLevel...Oregon Athabaskan G02-G03 Not Used Osage G04 Osage G05-G09 Not Used Code Lists G–17
https://www.census.gov/content/dam/Census/programs-surveys/rdo/TechnicalDocumentation/Census2000_pl94-171_techdoc.pdf