What's the source of this info?
Also, is it Hujduscek or Hudjuscek? You have both...
He's not in the Social Security Death Index, veromi.net or zabasearch.com.
The last four digits are also part of the zip code. The zip code was lengthened in 1983.
You could always try writing him a letter....? Write ADDRESS SERVICE REQUESTED under your return address -- that way, if he's moved, the post office should send you his new address.