Date of Organization: 23 November 1864
Date of Disbanding: 21 July 1866
Inclusive dates of units papers at State Archives: 1865-1866
Geographical Location or Locations: Castoria (now French Camp), San Joaquin County
a. Organization Papers 1 document (1864)
b. Bonds none
c. Correspondence (Unclassified letters) 3 documents (1865)
d. Election Returns 1 document (1865)
e. Exempt Certificates, Applications for none
f. Muster Rolls, Monthly returns 2 documents (1865-1866)
g. Oaths Qualifications 4 documents (1865)
h. Orders none
i. Receipts, invoices 2 documents (1865-1866)
j. Requisitions 1 document (1865)
k. Resignations 1 document (1865)
l. Target Practice Reports none
m. Other none
The Castoria Guard was a splendidly drilled unit participating in all the Brigade drills and considered to be quite an asset to the military strength of San Joaquin County, as they had in their possession forty muskets.
The membership of this company began decreasing during the first part of 1866, and unable to keep the membership of the unit up to the standard required by law, the Castoria Guard upon the recommendation of Adjutant-General George s. Evans, was on July 21, 1866, mustered out of service.