Appalachian State wide receiver Brian Quick and Peebles Stadium.
All three players were named to The Sports Network/Fathead.com FCS All-America Team.
The 6-foot-4, 220-pound Quick is Appalachian State's all-time record-holder in receptions (202), receiving yards (3,418) and touchdown receptions (31).
Jackson, 5-11, 190 pounds, was the first player in the history of the Great West Conference to be honored four times on the first-team defense, As a senior, he had 54 tackles and two interception returns for touchdowns.
Steed, 5-11, 186, had 46 tackles, four interceptions, and four pass deflections in a senior campaign which also featured his 48-yard fumble return for a touchdown against Elon.
Last year, all 107 Senior Bowl participants signed with NFL teams, and 83 were selected in the NFL Draft, including 12 first-round picks.
It is expected next week's practice sessions will be attended by over 800 general managers, head coaches, assistant coaches, scouts and other front office personnel from the 32 NFL teams.
NFL Network will televise the Senior Bowl, beginning at 4 p.m. ET.