Here is the gravestone of Jesse James. It looks to be a cenotaph though as his 'real' grave seems to be located at 39.36749722240061, -94.36475466564154

This gravestone/cenotaph should be added with

historic=tomb
or
memorial=cenotaph

See https://wiki.openstreetmap.org/wiki/Tag:historic%3Dtomb
and
https://wiki.openstreetmap.org/wiki/Tag:memorial%3Dcenotaph
for more information

Additional tags:
subject:wikidata=Q213626
subject:wikipedia=en:Jesse James
wikimedia_commons=File:Jesse James Grabmal.jpg