I think the five named are alts yes, definitely.  I don't have any information of the wallet addresses except for the information that 3KLW... was swept to 33ze... and that wallet address has raised some very serious questions.

As to HH - they didn't look very far to spread their merits nore notice the five-alts connection staring them in the face both merit swapping as well as DT trust/distrust.  (their own trust feedback page needs a broom to remove the 13/17 positives that have no reference link).