James,
Here is Mr. Wetzler. You might find what you seek in terms of the family at ancestory.com or on line looking at the U S Census of 1860. Frank
ILLINOIS CIVIL WAR DETAIL REPORT

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Name WETZLER, MORRIS
Rank PVT Company K Unit 37 IL US INF

Personal Characteristics
Residence ROCK ISLAND CO, IL Age 18 Height 5' 5 Hair BLACK
Eyes BLACK Complexion DARK Marital Status SINGLE Occupation N/A
Nativity GERMANY

Service Record
Joined When SEP 9, 1861 Joined Where CHICAGO, IL
Joined By Whom CPT FRISBIE Period 3 YRS
Muster In SEP 18, 1861 Muster In Where CHICAGO, IL
Muster In By Whom N/A Muster Out N/A
Muster Out Where N/A Muster Out By Whom N/A
Remarks TRANS TO CO G