Hi, I too am missing the 4th in the Grays, Hexham, Ipswich sequence - suggestion of Jedburgh seems reasonable. Also missing the next in a sequence E, ON, SUP, MICH. This looks like reference to the Great Lakes, but why in this order, & why trimmed in this fashion. I note E could be start or end of ERIE - and ON could be from ONTARIO or HURON - or maybe it is not Great Lakes at all !!