"L. R." [Leigh Richmond] - (L.R. are initials, not the legal given name).
"T. D." [Theodore D.] - (T.D. are initials, not the legal given name).
"NELLIE" [Ellen] - (Nellie is a nickname, not the legal given name - Ellen, Wife of Gilmer Brenizer.
Source: Info verified with Riverside Cemetery grave record, thru Findagrave.
Also, matching to FamilySearch data.