I read your blog and I think it's wonderful what you and your family are doing. It is sad to see how unkept some old cemeteries are. There is such history there, how can people just not care about their ancesters!
Anyway, I see you have a picture of Jeffrey's name on the Vietnam Wall, but did you know it's also listed on the Vietnam Memorial in Holmdel, NJ with a picture of him and a short bio. I visit that memorial about once a month, so if you'd like I can take a picture of his name on that Wall for you. It's set up a little different. It's a circular wall with 365 blocks, one for every day of the year. The soldiers names are engraved on the day they were KIA. It's a beautiful memorial and there's also an education center there.
If you Google 'Vietnam Memorial Holmdel' you will find the home page.