Livengood's first public service began seven years prior to the legislature in 1970, when he was selected to a council seat in Manorville borough.
One year later, he was elected to the office of Armstrong County Recorder of Deeds, register of wills, and clerk of orphans' court.
Livengood served in the legislature until his death in December 1988, just over a month after winning election to his sixth term in office over his Republican challenger, realtor John Oliver.
Livengood died of a massive heart attack he suffered while shoveling snow at his residence on December 17, 1988.
His wife Donna ran in a special election to fill his vacant seat the following year, but lost to Democrat Tim Pesci.