Hi VerySkeptic,
first of all, welcome to our forum
We didn't find much about these names, I am afraid

.
I did find four men of the name Humphrey, who were transported to Tasmania (Van Deemen's Land, as he stated in the automatic writing). Three of them left England from Portsmouth, one from Plymouth. None of them was tried in Exeter, but that doesn't say much, because convicts were often brought a long distance via Exeter, where some of them had to wait terrible long months for their ship. They have all been transported between 1822 and 1836. So who knows? One of them might have been "our" Humphrey.
(An interesting fact is, that people sometimes had to wait months for their actual trial, their cases being called up again and again, sometimes it took over a year until they were actually sentenced. Then they had to wait until a ship was found for them, a certain amount of convicts were collected, and then they were actually brought to the different harbours. This journey could take weeks, because on the way other convicts were picked up as well. If the prisons in the harbours were full, they had to wait in the next bigger prison closest to the port. Then months on a convicts ship, where a lot of people died. By the time they had actually arrived at their destination it could well be, that up to 3 years had passed, but on top of that they had to work off the 7, 10 or 14 years of hard labour in the colonies. A lot of people were transported only for stealing bread or clothes)
About the others we couldn't find out anything at all, not even the judge, who was so full of himself.
The medium Joan said, that often a lot of spirits don't even belong to the location that she is visiting. They are kind of popping in, seeking for help, somehow sensing that the can be helped.
So maybe the names weren't connected to Exeter at all.
There is also the possibility that the executed didn't use their real names when they were tried. Sometimes people used their maiden names, their mother's maiden names or simply made up names.
I do believe in real mediumship and I am sure that Joan is trustworthy, but spirits can lie, too.
We more or less gave up digging for the names, but that doesn't necessarily mean, that they never existed. A lot of the records aren't available online, and because none of us is living in Exeter, we couldn't search the records offices.
I have send off e-mails to the concerning archives, even one to Tasmania. all of them to no avail, because we don't have any dates whatsoever. The replies were, that they weren't able to help us, because it would be too time consuming to go through thousands of names without even having a year.
Meanwhile Joan is still researching, as much as it it possible to her (she is a busy woman).
It won't be the last time, that we will investigate Exeter Castle, and we did find matches during the research for the previous investigations, most of them on the list of convicts, that were send to Australia. they were names, that members of the public, who joined us on those nights have picked up.
Should we find out anything about the names, I will post it here immediately.
cheers,
Hella