I'd say you got your moneys worth, that '57 FE looks decent and other than the dirt on the Indians, they look to have pretty good details.:thumb:
I would say the 1857 Flying Eagle is G6 - VG8 based on the picture I see. A better picture would produce a better grading.
the 1859 a Fine under the dirt. 1861-VF 1863 F-VF 1864 VG-F. all assuming that the dirt rinses off easily.
Kind of strange. The dirt makes them look like dug coins, but they don't show signs of being undergrond very long. I would try a rinse under the tap and gently pat dry.
PLEASE DON'T START CLEANING THOSE COINS. Even with the slightest attempt at claening, you may well mess them up. Leave them alone. You did fantastic with what you have so don't ruin them. From what you listed you have a 31S Lincoln Cent and that alone is worth what you paid for everything. Just lots and lots of great coins there, so don't mess around cleaning or even rinsing them if you don't have to.
Great advice by Carl. :smile There really is something about a circulated, uncleaned, character ridden coin.......:smile