This facility was a Spanish American War site and not a American Civil War Site. You may want to try the link below for assistance.
The camp was located north of 29th Street between Hamilton Road and 2nd Ave., North Highlands.
The unit designations you give above are Regimental designations and not companies. Companies in Infantry and Cavalry battalions or regiments are commonly are referred to by letters.
Micah J. Jenkins Camp No. 164, Sons of Spanish American War Veterans
I hope this helps.
Gerald D. Hodge, Jr.
War Between the States Historian
Historian: 39th Georgia Volunteer Infantry Regiment