Try a new derivative of the name : such as Harding ?
Poor Law Index & Beds Archives has an entry ref P64/13/1b/7 dated 21/4/1701 Richard Harradine, carpenter wife & children, settlement at Potton from Moggerhanger.
There's an Admon for Richard Harrowden/Harradine of Potton, carpenter ref A 1716/29
However the NBI has burial at Potton dated 19 Apr 1716 in name of Richard HARDING
Blunham/Moggerhanger PR index groups Harro(w)dine with Hardin/g ?
John - I think you may just have found me an ancestor!!
I have a great x7 grandmother Mary Harradine, who married Richard Richardson in Potton on 29 March 1730. Richard Richardson was a basketmaker, and the first known recipient of an apprenticeship paid for by the John Snitch charity (he also happened to be a nephew of John Snitch ... and was apprenticed to his own father, as this had not yet been made illegal).
So far, I have not managed to find anything at all on Mary Harradine prior to her marriage ... but I think there is a strong possibility that she may either have been one of the children of Richard Harradine settled at Potton from Moggerhanger in 1701, or have been a further child of his born after 1701 (I have penciled her birth in as "circa 1705").
I have no baptism for her as yet, but I'll keep looking for one ... although it does look as though not all Harradine children were baptized.
I don't want to derail this thread, however ... so I shall start a further thread to discuss this possibility.