Okay, okay...by popular demand....
The name in the San Jose phonebook in between
Kazubowski, John
and
Ke, Kieng

is...(drum roll please)...

"Kusixu Kdsixpk"

the best guess for Mr. (Ms?) Kdsixpk's last name, amongst those I've
asked is

"Kay-dee six pack"

Watta world.
P.S. Can't be a typo...it's been in the book for at least two years,
now...