Hi, just a thought, but instead of walking, Narbourgh is not far from the Great Ouse, which flows to the sea. I think he would have been more likely, to have sailed to Yarmouth, than walked, is there any info, that he was a possible mariner. He could have gone from Narbourgh, to GY, all the way, by boat,the river Nar feeds the Ouse, it is 160 miles approx by road. Dave.
Oh dear, should have checked before posting, it should be 60miles
as you said, and not my misprint of 160miles.