William Henry (Bill) Biles III, 91, passed away Monday December 1, 2025 in Las Vegas, NV. Bill was born August 28, 1934 to William Henry Biles, Jr. and Anna Claps Biles in Denver, CO. He attended school in Denver and worked 40 years for the Denver & Rio Grande Western Railroad. Bill was predeceased by his parents; sister Wanda, and brother in law Clarence Williams; ex-wife Maria W Clements and wife Una Marjorie Pace Biles. He is survived by his wife Terry Biles; siblings Alice Barron, Claudia Williams and Eugene Williams; brother in law Tom (Diane) Reitter, sister in law Anne (Steve) Rosen; children Cindy (Steve) Guzman, Sherri (Roger) Phillips, Kenneth Biles and Scott Biles; grandchildren Capri (Kenneth) Komprood, Clayton (Brandi) Allen and great grandchildren Alexander Komprood, Clayton and Cash Allen. Services will be held at St Elizabeth Ann Seton Catholic Church on Thursday January 8, 2026. Visitation at 10:30 am followed by a Mass at 11:00 am. Burial will be in Denver, CO at a later date.