Orioles prospect Jackson Holliday adjusting to High-A Aberdeen
Jackson Holliday Promoted to High-A in Orioles Organization after
Top MLB prospect Jackson Holliday arrives in Norfolk
Orioles' Jackson Holliday records first High-A homer
Baltimore Orioles prospects represented well in Baseball America
Source: Jackson Holliday is being promoted to Triple-A Norfolk - Blog
Jackson Holliday and MLB's 25 Best Prospects 20 Years Old or
Top 50 MLB prospects: Jackson Holliday, Paul Skenes top Jim
Orioles promote Jackson Holliday, baseball's No. 1-ranked prospect