Any of them might make pretty flowers so if you've got 4 flowers, try one of each!!

The red in Minerva is likely to be dominant in her babies. However, you've got nothing to lose, so just try 'em all! I like the suggestion of trying a different pollen on each bloom. Just be sure to mark them, so you know what you've got (said by someone who hasn't done a great job of keeping track of her pollination efforts this year- I've kept track of about 3/4 of my cross pollination efforts).

Berkleysgr8 - Hahaha I know how that feels! Last year I crossed some of my red carnations with my really pretty pink and white flaked ones, and then...immediately forgot to label the seed heads! Haha...I just saved them and marked all possible parents.

Though with hippeastrum seed heads, they're so large it would be easy to mark them with marker or a dab of paint. I'm thinking I will just do multiple crosses, one per flower, and see what takes. :)

And dondeldux - thank you for the encouragement! I'm looking forward to growing these little guys...