The Catholic ceremony was conducted by Rev. Paul Mott at the Protestant River of Life Family Center.
The entire family of both the bride and the groom attended.
The bride was given away by her two sons, Brian Chevalier and Michael Carns.
The groom's son-in-law, Scott Riggs, served as best man.
The groom's daughter, Penny Riggs, had introduced Gravenmier and Jessen to each other.
The couple are both retired.
They honeymooned on a trip throughout southern Idaho.