Hawley's Ellefson making bid to see the Bison field as a freshman - The Dickinson Press
North Dakota State Bison football - Wikipedia
Ellefson's TD, defensive stand lift Hawley to win in state quarters - InForum
Bass Technique Secrets w/Megadeth's David Ellefson
NDSU Football в Twitter: „Hawley's finest, Ben Ellefson, put the Bison up 35 midway through the 2nd quarter. / Twitter
Liberty softball team wins school's first team championship
JMU football loses FCS National Championship to NDSU, 28-20, 2019 Football Playoffs
From Butler to Central Arkansas: A look back at former Bison quarterback Trey Lance's 17 college starts - InForum
Bison Put League-High 68 on Valley Football Honor Roll - NDSU
David Ellefson & Jackson: Gear talk & picking technique @ Guitar Summit Web Camp 2020
Ex-Megadeth bassist David Ellefson files report with Scottsdale police