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Captain Cranky said:
Since this series has a ton of mudding up the silver-age waters, I'd guess Barry is the father, but Boomerang didn't know it. Boomerang probably had his brain mucked with, too. I'd guess all of Barry's rogues did, they were mostly morons back then.



If Flash were the real father that would abate the explanation of the kid's natural talent with boomerangs.