Parents married about 1790 in Spartenburg SC. Their son, John was born in Spartanburg also. He was buried in Spartanburg in 1886. It seems unlikely that he would have been in Illinois in 1850.
Find A Grave Index
CITING THIS RECORD
"Find A Grave Index," database, FamilySearch(https://familysearch.org/ark:/61903/1:1:QV2T-87C8 : accessed 4 May 2016), John Bryant, 1886; Burial, Whitney, Spartanburg, South Carolina, United States of America, Liberty United Methodist Church Cemetery (Whitney); citing record ID 77707599, Find a Grave, http://www.findagrave.com.