I found this on the website
http://www.2manitowoc.com/biosT.html :
CHRIST H. TEGEN
This is a bio. sketch from "History of Manitowoc County Wisconsin",
by Dr. L. Falge, 1911-1912, v.2, p.488-492.
Christ H. Tegen, architect and superintendent of Manitowoc, who has
designed many of the largest and most beautiful buildings in the city, is
a native of Germany, and was born in 1856, a son of P. and Mary (Finner)
Tegen, who spent their lives in the old country, where Mr. Tegen was
engaged in the glass business.
Christ H. Tegen received a college education in his native country,
attending the polytechnic school at Hamburg, Germany, and the Holtzmann
Polytechnic Institute, and in 1883 came to the United States, settling in
Manitowoc for two years and then going to Milwaukee for six years, after
which he returned to Manitowoc, where he has since followed his profession.
Among the buildings designed by Mr. Tegen may be mentioned the insane
asylum, the Holy Family Hospital, the Manitowoc Court House, the
Rhinelander Court House and the Luling schoolhouse the Williams and
Dempsey blocks and many other business structures, and numerous residences.
In 1878 he was married to Miss Ida Ohlen, who was born in Hamburg, Germany,
and they have three children: Robert F., one of the leading architects of
Portland, Oregon, and a graduate of the University of Illinois at
Champaign; Paula, who serves as stenographer and assistant to her father
and Martha, who married J. J. Healy, district attorney of Manitowoc county.
Mr. Tegen is a prominent member of the Elks.
Hope this helps!