No master list of survivors of which I am aware, Stefanie. Many WWII units have veteran association (alumni) groups. Because of advancing age, and attrition due to death of the members, many of these groups that were once active are no longer. There are association lists available online, and though I found several listed for other Navy torpedo plane squadrons (which is what the "VT" designation indicates) I could find none for VT 305. That doesn't necessarily mean that one does not exist, or never existed, only that I could find nothing. A quick search produced this web page: http://www.cambridgeairforce.org.nz/Newsletters2003.htmhttp://www.cambridgeairforce.org.nz/Newsletters2003.htm
It is apparently a newsletter (circa 2003) for a New Zealand outfit, in which (as you can see) they allude to VT 305 with the following excerpt:
"Both of our American counterpart squadrons Marine VMBT-232 and Navy VT 305 although still actively providing interesting newsletters thanks to Art Surtees and Robby Smith are like ourselves finding it difficult to organise reunions for exactly the same reasons as ourselves due of course to natural attrition and distance."
If you can find nothing better to pursue, perhaps someone associated with the NZ unit could provide you with contact info regarding the gentleman/gentlemen who authored the VT 305 newsletter.
Sorry I can't be of more help. Good luck with your search.