Thank-you, they've all been great garden plants.
Arlyn, thanks for the suggestions. In googling them, I found the reblooming iris page. I've pulled off all the blue ones, made a list, and am researching.
A couple off the bat that look promising for #1 are 'Caribbean Dream' (Schreiner '90) and 'Ocean Pacific' (Ghio '88). Also 'Sonata in Blue'.
'Sapphire Hills' looks like a ringer, except that it's not a rebloomer.
Calif. Sue- I'll research 'Blue Anew' some more, but the picture I pulled up looks like a possiblity too. (I've seen many of your pictures in the database-we have a lot of plants in common)
#2- 'Lake Reprise'?? 'Winds of Change'??
#3 'Genteel'??
I will often buy plants purely on their names. So Sapphire Hills would work (sapphire is my birthstone). I thought I remembered one was named Blue Denim, but now know that it is a SBD, but I ran across one named 'Stonewashed', but haven't found a picture yet.
And so the research continues...
I also hope to be taking flowers to our next society meeting to see if anyone recognizes them.