"History of Washington and Ozaukee Counties, Wisconsin," published 
in 1881 by Western Historical Company.

pg 729

A.G. Koch, merchant, Kewaskum; son of Christian Koch, and a brother of William 
Koch, of this village; was born in the village of Kewaskum in 1859.  Previous
 to engageing in business, he was employed as clerk for several years; he was
with J.C. Kuhlmann for two and a helf years, also for David Stolper, of the town
of Scott; he afterward starteed a store in the latter town for his brother 
Charles; he engaged in business in Kewaskum in September, 1881; he keeps a
general stock of merchandise.

Transcribed by Tina Hursh.