History of northern Wisconsin: containing an account of its settlement, growth, development, and resources, an extensive sketch of its counties, cities, towns and villages, their improvements, industries, manufactories, biographical sketches, portraits of prominent men and early settlers, views of county seats, etc. Chicago: Western Historical Co., 1881. p.1173

A. Eisenach, brick manufacturer, is a native of Prussia, came here May,
1854, and began his trade of shoemaking, which he successfully conducted
for fourteen years. In the meantime he carried on the fire, life and
accident insurance business for nineteen years; he has also been active in
the political life of his place, and has filled almost every office of
trust in it. In 1876, he began his present business, which he has
successfully conducted ever since. Feb. 16, 1852, he was married to Miss
Bertha Hilliges, in Prussia. She was born Nov. 16, 1826, and was buried in
Oakhill Cemetery, Neenah, March 16, 1881 He has seven sons born on the
16th of the month, and three sons buried on the 16th of the month- a
coincidence of a remarkably rare nature.