Charles "Hammon," John Hammond, Joseph Hammond, and William Hammond were all winners in the 1832 Georgia Land Lotteries which gave Cherokee land to white people, so there were several white families by that name who had land in the former Cherokee nation. There were several families headed by men named Hammond in the 1850 U.S. Census in Cherokee County and on 1849 tax records in that county.
There was a Charles "Hammonds" on the 1835 Cherokee Census living on Sharp Mountain Creek with a family of 7, all fullbloods. His property, consisting of three houses, 2 cribs, and 64 peach and apple trees, was appraised at $364.50 in 1835. They were Removed to Indian Territory and they do not appear on the 1851/52 Siler and Chapman rolls of Cherokee east of the Mississippi.
There is no one named Norwood on either of those rolls. Margaret is listed as white on the 1850 U.S. Census; a full-blood Cherokee would not be mistaken for a white woman.