You are probably pursuing the family of James Sample Alexander and wife Elizabeth "Betsy" Davidson McCracken.A dau. Mildred Louisa Alexander m. Ulysses Alexander.Another dau. Elizabeth Caroline Alexander, m. John Johnston and they had son Dr. William Sample Alexander.Elizabeth and John Johnston were in Dallas Co., AL, when died.Their son was in Perry Co., AL.James Sample Alexander came from Mecklenburg Co., NC.
Josiah and Mildred (Orr) Alexander...all from Meck, NC... were James Sample Alexander's parents.James had a son James Sample Alexander, Jr.
Perhaps, this will give you more avenues to pursue.