About forty years ago a great-aunt of mine handed me a rolled up tree showing the pedigree of the Gurney family, which went back through the name variants to Gourney, Gournay, de Gournay, to about the year 800 in Normandy.
For some reason she imagined there might, somewhere, be a mutation of the name, perhaps in the 15th Century, to my mother's family name of Gournard/Gurnard/Gourner/ and finally Gurner, today.
The Gurner family are quite straightforward to trace as between at least 1560 and 1897 they stayed in the same small village in Ickleton, Cambridgeshire as tenant farmers.
I am sure the link, if there is indeed one, must be wishful thinking. One little puzzling detail, though.
The man who was Lord Mayor of London, Sir Richard Gurney, who was a Royalist and died in the Tower as a prisoner in 1647 was born as Richard Gurnard in 1577 in Croydon, Surrey. For some reason, when he was knighted by King Charles he changed his surname from Gurnard to Gurney.
Finally, one of the helms on the Gurney coat of arms in the 15th C. is a downward-pointing gurnard fish.
Just wishful thinking, of course, imagining one can trace one's family back to 800... but I still have an occasional poke about amongst 15th Wills from time to time...
Keith