Historic California Militia and National Guard Units
Union Corps

Military Unit Designation:
Union Corps, Company D, 1st Infantry Battalion, 4th Brigade, California Militia
Date of Organization:
April 22, 1862
Inclusive dates of units papers:
1862-1865
Geographical Location or Locations:
Michigan Bluff, Placer County

Records Series Descriptions:
a. Organization Papers 2 documents (1862)
b. Bonds none
c. Correspondence (Unclassified letters) 45 documents (1862-1865)
d. Election Returns none
e. Exempt Certificates, Applications for none
f. Muster Rolls, Monthly returns 2 documents (1862-1863)
g. Oaths Qualifications 4 documents (1862)
h. Orders none
i. Receipts, invoices 1 document (1862)
j. Requisitions 1 document (1862)
k. Resignations none
l. Target Practice Reports none
m. Other none
 

Commanding Officers

 Name  Date of Rank  Date of Commission
     
 William B. McGuire, Captain  22 April 1862 21 May 1862
 O. G. Spaulding, First Lieutenant  22 April 1862 21 May 1862
     


Official History
 
Michigan Bluff was the oldest mining town in Placer County, the name being derived from a group of miners settling t here from the State of Michigan. It was in this little &ining center that a company of volunteer militia was formed by a meeting held in Military Hall on April 22, 1862. The election of officers was also held at this time which placed William B. McGuire as Captain and O. G. Spalding as First Lieutenant, and the company adopted the name of the Union Corps.

The men were anxious to have a well drilled unit and held nightly drills without as much as a gun for practice. The arms and accoutrements were not received until August 1862. There were many new companies forming during that time causing a shortage of arms, which accounted for t he delay by the State in supplying the Union Corps with the necessary equipment.

The company was unable to attend the "Review" held in Sacramento during October of that year as their accoutrements were not complete, and they had no scabbards to hold their swords. Those conditions no doubt led to discouragement among the men and they began missing their weekly drills, and By-Laws were adopted in March 1863 by the officers to punish those who failed to report in the future. This company attended t he Camp of Instruction held at Camp Kibbe , which was located near Washington in Yolo County, on September 19, 1863, and were to receive all their necessary equipment upon arriving at camp. The men of the Union Corps received a great deal of praise and encouragement while at camp as never having practiced anything but company drill, they did well in every activity they took part in. These drills and exercises however, did not seem to hold the company together as there are no later records, and it is assumed that the Union Corps was must ered out of service during the latter part of 1863.
 
 
This history was completed in 1940 by the Works Progress Administration (WPA) in conjunction with the California National Guard and the California State Library.
 
 
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Updated 8 February 2016