Career
Originally elected as an independent, Byblow joined the Yukon New Democratic Party caucus on September 16, 1981. He retired in 1985, and was succeeded by Jim McLachlan. He was re-elected to the legislature in the 1989 election, and served until 1992.
He later served as an executive assistant to NDP leader Piers McDonald, and both were implicated in a conflict of interest scandal, although both McDonald and Byblow were eventually cleared.
After retiring from politics, Byblow purchased the Capital Hotel in downtown Whitehorse in 1997, and worked as a hotelier until selling the hotel in early 2008.