Boston Red Sox: Generations, or alts as slightly alternate history

A while back, maybe a year or two ago, I got to thinking about alt history concepts.  They've been done, but not that often, but somehow, someway I wound up in that exact territory, wondering what alts I could come up with for various time periods.  In every case, the images said it all.  These were originally posted at CCSLC in 2011.