OK - lets try this
"April 4, 1864 SO 76, Houston "...Captain Stanfer's Company of Unattached Cavalry will report with as many of his men as may be necessary to Mr. R.W. Dunn for service on the torpedo boat now being constructed in the district. Such members of his command as may not be required in the torpedo service will within ten days from reception of this order, join some infantry or artillery company in this District as they may elect..."
There are two sites where they may have reported. Lubbock's Mill near Houston or Tyber Creek shipyard just off Buffalo Bayou and fairly near Lynchburg. I've never heard of the name Stanfer before and sometimes you find names spelled phonetically Just can't think of name that might have been misspelled as Stanfer.