I found a Gilbert Riggan,buried at the National Cem In Nashville,Tn. Born August 1802 -died Dec ,1864.He was in the Union forces holding Nashville.There is a missing brother,by the name of Gilbert Ragain.Could this be the same and I found a Smothers married to a Gilbert Riggan.In Montgomery Co. Tn.they had 3 children Ann,Amy? and Gilbert.the old family name was Riggin(from New Jersey) and was changed in North Carolina to Ragain/s.By the way related to Thomas Ragain/s and Elizabeth Featherkille.