Frederick Lutz fought in the United States Civil War for the Union Side. He was listed as being from Kentucky. He was a Private K in the 2nd Kentucky Infantry.
I came across that too but I think there is another candidate from Indiana that might be him. There is a family tree published on Ancestry:
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Frederick Lutz
Birth 3 Mar 1837 in Nassau / Germany
Death 17 May 1923 in Scott Co. Indiana
Birth
1837
3 Mar
Nassau / Germany
1 Source
Residence
1863
1 Jul
Age: 26
Oregon, Clark, Indiana, United States
Age on 1 July 1863: 26; Marital Status: Unmarried
1 Source
Residence
1870
Age: 33
Louisville Ward 1, Jefferson, Kentucky, United States
Age: 30
2 Sources
Residence
1880
Age: 43
Oregon, Clark, Indiana, United States
Age: 43; Marital Status: Married; Relation to Head of House: Self
Death
1923
17 May
Age: 86
Scott Co. Indiana
Spouse & Children:
Augusta Scheirer
1840 – 1923
Emma Lena Lutz
1869 – 1955
Philip Lutz
1871 –
Louisa Lutz
1875 –
Amanda Lutz
1878 – 1981
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I followed a link provided in the tree to a Civil War draft record index which led me to the Company B, 81st Indiana Infantry and this reference for Frederick Lotz whom I think is the same.