Your...Adam Kielbasa who Died October 24, 1980 in Conover does not appear in the online tombstone transcripts of Hildegarde Cemetery in Conover http://wigenweb.org/vilas/cem/hildegard.html
Nor does he appear in the book "Cemeteries of Vilas County transcrived in 1995/1996 by Rosamond Vannoy.
This is probably not what you want to hear but you may need to search for an obit or get the death certificate to determine where he is interned.
You could try contacting the Funeral Homes in the area.
wishing you success
Judy, volunteer cc USGenWeb Project