If his father was a ghost and his mother was a red creamsicle, then he is most likely more than 3/4ths cornsnake. Usually red creams have more corn blood than emoryi blood. 50/50 corn emoryi crosses tend to be more yellow to orange due to the emoryi influence. Of course, all of the babies will still be hybrids (or intergrades...depending on who you talk to) regardless of how much emoryi blood they have. The babies should still be sold as corn emoryi crosses.
Also, if the mother was het anery, then he could be an anery emoryi corn. He would be het amel and hypo, too.
If the mother was NOT het anery, then he is a "normal" emoryi corn het snow (amel and anery) and hypo. I use the term "normal" loosely because due to the emoryi influence a normal emoryi corn will look a lot different from a pure "normal" corn or emoryi.
Of course, this doesn't figure in if the parents were het for anything else as well.