Both were AVCA All-Americans last season.
Sandy Barbour was Penn State's athletic director from 2014-22.
Guilford decommitted from the Nittany Lions in February.
The third baseman will return for his redshirt junior season after being selected in the MLB Draft.
New season tickets for sale are located in sections NE201-203 and SE201-203.
Barkley added two more recognitions for his stellar 2024 NFL campaign on Wednesday night.