A true Rhodebar will breed true.  Sounds like you may or may not have gotten purebred.  I say that only because Rhodebar eggs are brown... Not green, cream or white... Ever. 
If it were me I wouldn't even hatch the ones that weren't brown, but that's up to you.  At the very least hatch them in a separate Chamber of you can.
When they hatch take pics of each of them at a day or 2 old.   Several of us on here should be able to tell you if you are on the right track.  Then you will need to track those to make sure they feather out correctly.
At that point, if you have some that have passed the test to that point you will simply have to breed them to find out for sure. 
Do you happen to have pics of the parents? 
 Unfortunately there are too many folks now selling Rhodebar eggs and/or birds that don't really know what they have.  And too many have been potentially crossed with a few other things. 
We will help in any way we can.