I am a retired Air Force Officer, and from St. Louis, If I are my wife dies first, will we be able to buried inground with head stone ? Are we have to be buried in a cellarium ?

I'm assuming by cellarium you are referring to the Columbarium. The Columbarium is for cremations only. Jefferson Barracks National Cemetery does not offer any type of above ground options for casketed remains. You should have the option for above, or below ground options for cremated remains.

You can be buried either way.

You can be buried however you want.