Hey CC,
Any luck yet? All the info I've seen is on larger crappie but I suspect young of the year would have the same identifying features.
Black crappie have 7-8 dorsal spines and random blotches on their sides.
White crappie have 5-6 dorsal spines and the black side markings form vertical bars rather than random spots.
When you see one of each next to each other it's real easy to tell the difference by their side markings.
This site might have what you're looking for - http://www.glerl.noaa.gov/seagrant/G...unfish.html#Pa
Hope this helps.