Thank you,   Ralf and Rick.    Both replies have straightened me out on Loop 
once again.   


> and here it is in sal, look ma no quote!
>
> define variable a-ref = {a1  (1 2 3) a2},
>                  b-ref = {b1  (4 5 6) b2},
>                  c-ref = {c1  (7 8 9) c2},
>                  ref-list = list(a-ref, b-ref, c-ref)
>
> #a[list for refx in ref-list collect second(refx)]


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