Notes:

Have no knowledge about this child. There is an unaccounted for John J. (or G.) McFarland in the 1840 census, living in Liberty with a wife and two children, one male, one female, and one older woman, on same page as the rest of the McFarlands of St. Francois Co. However, I believe this is Jesse Jackson McFarland, son of Jesse McFarland, living with his widowed mother.

However, I believe that this John McFarland may have been a first son, born before Newton. He may have been the father of Robert McFarland, who appears as a one-seventh heir of the estate of John and Mary Fleming McFarland after John's death in Texas. He may also have been married to a Rebecca, because there is an unaccounted for Rebecca McFarland on the 1843 census for Texas in Fannin County. Mystery!!
Have no knowledge about this child. There is an unaccounted for John J. (or G.) McFarland in the 1840 census, living in Liberty with a wife and two children, one male, one female, and one older woman, on same page as the rest of the McFarlands of St. Francois Co.

However, I believe that this John McFarland may have been a first son, born before Newton. He may have been the father of Robert McFarland, who appears as a one-seventh heir of the estate of John and Mary Fleming McFarland after John's death in Texas. He may also have been married to a Rebecca, because there is an unaccounted for Rebecca McFarland on the 1843 census for Texas in Fannin County. Mystery!!