For Tarsila I found the following text that mentions it:
http://www.panix.com/~gabriel/public-bin/showfinal.cgi/446.txt
Basically it gives a theory that Tarsila is derived from the geographical name Tarsus.
The text may look somewhat suspicious, but after checking I think these people know what they are talking about. Their homepage is here:
http://www.s-gabriel.org/