No, I am one and the same Trish Santer, alive and kicking, aka Tattie Bogle, living in Edinburgh Scotland, both a Mudcatter and active on thesession.org. I've never been too secretive about my Mudcat nom de plume, so when I joined thesession.org, I just used my real name.
I think maybe what happened is that, as Tattie Bogle, I supplied a list of names of Scottish musician friends who had not been mentioned on the In Memoriam thread, then must have signed it with my own name - which has then been included in the list of the sadly departed!!
I'm definitely still here! So maybe you could remove my name from that list?
(See post on 8th January 2012.)
I checked on Facebook and there is a Trish Santer Helms in New York, but I don't know her, and don't think she's a Mudcatter.
Keep up the good work, Pete Waddon!