I checked my Leake and Madison Co. cemetery books and didn't find any Norreds listed in either.
The Norreds definitely came through Leake. In the book I have "Family Maps of Leake County, Mississippi", Isaac, Samuel and William Norred were each issued land patents in Leake 2-27-1841 in Twp 10-N, R7-E, Isaac in Sec 3 and the other two in Sec 4. The only cemetery I see listed near them is the Pilgrim's Rest cemetery, but I saw no listings for them. Lots of graves from that long ago were not marked, so it is very possible that some of your folks are buried there without headstones.
I know this doesn't help any except to reinforce the fact that they did live in Leake at one time assuming these are your ancestors. :)