Biker - it wouldn't surprise me that mottled leaves have shown up on in your Little Mary as schilleriana shows up a number of times in it's lineage. As does Phal rimestadiana, aphrodite, amabilis and stuartiana, sanderiana, amboinensis and equestris and leuddemanniana.
It has one of the most complex lineages I have ever encountered
.. if you want the list, I can PM or email it to you - because there is no way I am charting this one up
I started but stopped after going back 12 generations without completing it.
Sue - you picked quite the hybrid to honor your mom with .. in fact .. one of the hybrids in it's lineage is Phal Lively Suzan
(= Phal Bataan x Phal stuartina)
[Phal Bataan = Phal amabilis X Phal aphrodite]