Hi, I'm not related to your family but did find a Kritzer family that fits your description in the 1860 census for Berrien Co, MI.Below are the details.Hope this helps in your hunt.
1860 CENSUS, Berrien Co, MI, Oronoko Twp, Berrien Springs post office, enum 28 June 1860, page 79
KRITZER, JOHN, age 72, male, farmer, value real estate 800, value personal estate 370, born PA
KRITZER, ELIZABETH, age 62, female, born MD
QUICK, ELIZABETH, age 16, female, housekeeping, born MI, attending school
QUICK, WILLIAM, age 6, male, born MI
KRITZER, JOHN, age 21, male, farmer, value real estate 400, value personal estate blank, born OH, married within the year
KRITZER, CATHERINE, age 21, female, born Germany, married within the year