Ratsnakes
Corn snake (Elaphe gutatta gutatta).
This is commonly recognised as the number 1 beginners snake. They are available in large numbers each year as captive bred hatchlings, often in a variety of attractive colours, feed readily on appropriate sized mice and are of a very docile nature.
Adults rarely exceed 120 cm in length and can be accommodated in a simple vivarium.
Common ratsnake (Elaphe obsoleta).
Several sub-species are often available differing mainly in their basic colour, with adults reaching 1.5 -2.0 m in length. Hatchlings have a series of saddles along their length which are lost as the snake ages.
An exception to this is the grey ratsnake ( E.o.spiloides) which retains it’s juvenile markings. Some species do not share the corn snakes temperament.
we werent planning on breeding them this year till we learned more about breeding.
Sounds like you possibly got a lot of reading to do on this breeding snakes thing.
Specific husbandry knowledge is a mandatory thing, when it comes to breeding snakes.
If the female is to young, her health can be endangered by the whole breeding ordeal.
Death can be a very real side effect.

Hate it when that happens.
There is a Keyword search feature here that may help you.

also,
www.google.com may help you find additional information.
I'm going to suggest this rat snake forum link here. A search may give you answers about grey rat snake intergrade breeding, I for one, know nothing about them.
http://forum.kingsnake.com/rat/

I found a mention of this cross here:
http://www.reptimania.co.uk/cornmorphs.htm
Fantasy/Frosted
An Amelanistic hybrid of the Cornsnake Elaphe g.guttata with a Grey Ratsnake Elaphe .o.spilodies. In the USA they are marketed as Frosted Corns here in the UK they show up on pricelists as the Fantasy Corn. The background is white and they have orangey/brown broken up blotches running down there back.
And a picture of a
Fantasy Cornsnake which is a cross breed of a Grey Rat Snake and a Snow
http://websites.ntl.com/~nigel.rousell/shadowphoto.html