There is no Wiatt/Wyatt Lankford/Langford. This mean that no female descendant has joined DAR using him as her ancestor.
There are only a 9 Langford/Lankford listed They are from 1- MA, 1 RI, 3 - VA, 3 - NC and SC.
The one from SC was John born about 1728 died before 29 Feb 1796 SC married Winnefred ----performed Patriotic Service from SC.
Patriotic service means such things as signing an oath of association, delegate to provincial or continental congress, express rider, minister who made patriotic sermons, prisoner of war or of the indians, etc.