I was able to find Jonathan and Mary listed as being buried in Mount Vernon at (I.O.O.F. LODGE #23 CEMETERY) 1200 East Fir Street Mount Vernon, Washington 98273
Murr, Jonathan Lot 9 Block 215 Section 6 year 1945
Murr, Mary Lot 10 Block 215 Section 6 1945
Nothing turns up on the other names - and though this cemetery is on Findagrave, for some reason, they don't turn up as listed - weird - sorry, at least that's 2 accounted for!