I took a stab at researching your Yarbrough line but with no definitive results. Comment: Lorraine (male) might be Lonnie.
The 1870 cnesus for Arkansas has an interesting entry for a Arch (G) Yarborough born circa 1844.
Name: Arch Yarbourough Estimated Birth Year: abt 1844 Age in 1870: 26 Birthplace: Arkansas Home in 1870: Texas, St Francis, Arkansas Race: White Gender: Male Value of real estate: View image Post Office: Madison Household Members: Name Age Arch Yarbourough 26 Mary Yarbourough 23 William Yarbourough 41 Jean Yarbourough 2 Maria Yarbourough 6/12 1870; Census Place: Texas, St Francis, Arkansas; RollM593_65; Page: 433; Image: 245.
I can not find any clear connection between your Yarbrough and this Arch but the name may be a clue for further research.