I found a website with equivalents in the High Elven language (Quenya) from "The Lord of the Rings" for hundreds of common and uncommon personal names. After I look up my own, I saw "Stacey" right above it, and decided to look up the Elven names of major "Daria" characters.
The website with the Elven names on it is: http://www.elvish.org/elm/names.html
I cheated a little bit on Trent's name.
My biggest problem was Jane's brother Wind. That sounds just like a name that an Elf might have, but it's so unusual in our world that it wasn't in the Names website. So I went to another Tolkien website and---sure enough---there was an Elvish name "Son of the Wind." The other website is: http://www.uib.no/People/hnohf/qlist.htm
Another problem is that 3 people have first names that are variations of the feminine of John. In other words, we have 2 Janes and a Janet. However, the Janet is Mrs. Barch, who's really an orc anyway, so she doesn't even NEED an Elvish name. Ms. Li is very likely an Orc also.
I suppose it's possible to translate Lawndale into Quenya using the words for "grass" and "valley" but I didn't bother.
Anyway, here are the names. Enjoy.
STEVE CROSS ("Daria" fan, Tolkien freak for the last 36 years.)
The fashion club girls (except Quinn, see below):
SANDI - Varne STACY - Ortaine TIFFANY - Erutanie
Mystik Spyral (except Trent, see below):
JESSE - Anno NICK - Turelio MAX - Analto or Analton
At Lawndale High:
MRS. JANET BARCH - Eruntalle MISS JANE DAFOE - Eruntalle MR. TIMOTHY O'NEILL - Alcareru MR. ANTHONY DEMARTINO - Loto, Lotu, or Lotion MS. ANGELA LI - Aini
The Lanes:
JANE - Eruntalle TRENT - Anwaner (I couldn't find "Trent" in the list, so I went with "Truman," which is Anglo-Saxon for "true man." The Quenya name means "real or true man," in other words, a dude who keeps it real. I think Trent would like it.) PENNY - Lanyare, Vaire or Vire VINCENT (their dad) - Mapalon WIND - Surion (I can't remember the name of Jane's mom. A little help here?)
The Morgendorffers:
HELEN - Alce or Alcie JAKE - Encaitar QUINN - Lempenis (The person who wrote the site considers Quinn a man's name, so I added the Quenya word "nis", which means "woman" to the end of her word for Quentin / Quinn.) DARIA - Maneharne or Maraharne (Daria, BTW, is given as the feminine of Darius, a Persian name supposedly meaning "possesor of good things." Now you know.)