Thanks for the comments! Y'all have posted some things to ponder. I guess the only way to know for sure would be to do a genetic test on the parents and the seedlings to verify parentage. (Not going to happen, btw.)
I did create a Pedigree Chart for this "possible" cross:
I wish I could fill in ALL the photos to see if any of those unpictured seedlings might resemble my children.
I don't know.... anyone care to comment further after looking at the pedigree chart?