The James and Amanda you have found are James C. "Button Jim" McHargue and his wife Amanda Jones. Button Jim was the son of William "Bill" McHargue who was married to Elizabeth Stanbery. Button Jim's sister was Barbary who married Benjamin Wyatt.
I do not have any information about Wyatt children being raised by McHargues, but I would not be surprised by it.
You may want to contact Linda Weinberg who also posts to this forum. She has much more information about this branch of the family.