Re: Andrew J. Carter/ 7th. Regt.
The cemetery is located in or near the old community of Williamsburg. If you are traveling West on US 84 from Collins, you would make a left turn and travel South to Williamsburg, if I remember correctly there are signs posted at the turn.
Anyone in this small community should be able to direct you to the cemetery.
A map is available at this site.
http://www.findagrave.com/cgi-bin/fg.cgi?page=cr&CRid=63667&CScn=williamsburg&CScntry=4&CSst=27&