There is no evidence for the entire Harding portion of the line. The way each generation jumps from county to county is a clear sign that this line needs to be broken in multiple places.
We need to start at the beginning. Why do we think the LNAB for Isabel, wife of Richard Baldwin was even Harding? It is not supported by the sources.
If she is a Harding, why do we think she is a daughter of Richard Harding of Northamptonshire? It seems like a random connection.