Little Jarnevon
from Fancyclopedia 2 ca. 1959
(E E Smith:Suddsy) A slanshack in 1943 inhabited by Suddsy Schwartz, Larry Shaw, and such visitors as they couldn't get rid of. W 18th St., Manhattan.
from Fancyclopedia 1 ca. 1944
(Smith:Suddsy) - 310 W 18th St, Manhattan NY. A science fiction house inhabited in mid-1943 by Suddsy Schwartz and Larry Shaw, and such visitors as they couldn't get rid of.

Jarnevon, of course, was the home planet of the Eich — third-level Bad Guys — in the Lensman series. It was destroyed spectacularly.