Hello Chris,
Not quite the information that you have asked for but may help in locating the Cemetery Information - if the family had not moved

Although the aircrash was November 1987, the death was probably registered after an Inquest which could have taken a little time. I believe the young man may have married in Milwaukee. Wisconsin 7 Jun 1986.
The
BMD Index for Northumberland shows:-
John Robert Carver. Birth Date: 5 Apr 1956
Death Registration Month/Year: Sep 1988 Northumberland. Aged 32 years
The
SSDI Index shows:-
John Carver
Born: 5 Apr 1956
Last Benefit: 53217 Milwaukee, Milwaukee, Wisconsin.
Died: Nov 1987
SSN issued: Wisconsin (1967)
Regards
Sandra