Thank you Fred for the information.
Is the volume you referenced available on the internet?
I have located a reference to the Holmes's House in "Seige Train. The Journal of a Confederate Artilleryman in the Defense of Charleston." which is included in the diary collection of Major Edward Manigualt at the University of Louisville.
I also located a map in the Civil War Map Collection of the Library of Congress (DIGITAL ID
g3914c cw0384500) http://hdl.loc.gov/loc.gmd/g3914c.cw0384500
that locates both the Holmes and McCleod Houses mention by Major Manigault in his Friday, 10 July 1863 entry.
This gives a location to the south and west of Battery Simpkins near Newtown Creek east of Ft. Pemberton.
Battery Simpkins is also detailed on the map.
I have ordered a copy of the "Seige Train" book for further research.
My ancestor, W.T. Kitchens has three records placing him at the Holmes house- two pay records and one record of receipt of clothing.
I am amazed at the amount of information that has surfaced since we started this investigation.