Orioles prospect Jackson Holliday to be promoted to Triple-A Norfolk - The Baltimore Banner
Jackson Holliday reportedly promoted to Bowie Baysox
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Source: Jackson Holliday is being promoted to Triple-A Norfolk - Blog
Jackson Holliday promoted to High-A Aberdeen
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Orioles minor league report: Jackson Holliday off to 'rare' start at High-A, where other top prospects struggled
Jackson Holliday promoted to High-A Aberdeen
Untouchable Baby Birds: O's prospects who are off limits this deadline – The Baltimore Battery