Can the cremated remains of my veteran husband be buried in ground so that my remains (not cremated) may be buried with him at a later date?

If your husband is placed in an urn and you plan on being placed in a casket your husband would be placed in a section that can only accommodate urns. At the time of your burial, your husband would be removed from his site so you could be placed together in a section for caskets.

I don't think caskets and urns are buried in the same sections of the cemetery.

Please explain more. Are you planning on placing cremated urn and then casket?