Illinois:  History of Cass County, Illinois, ed. William Henry 
Perrin. O. L. Baskin & Co. Historical Publishers, Chicago, 1882.  
Cass County

C.A. BUSSMANN, contractor and builder; Beardstown; was born in 
Osnabruck, Hanover, May 18, 1822, and at sixteen years of age 
began learning the manufacture of spinning wheels, gears and 
reeds, at which he worked till he was twenty years of age.  In 
1842, he emigrated to this country, and came via Baltimore and 
Pittsburgh to Cincinnati, O., where he worked a short time on the 
National road, and late in the same year moved to St. Louis, Mo.  
He then worked on farms in different places till February, 1843, 
when he came to Beardstown, where he worked at various 
employments, and about the year 1845 apprenticed to the 
carpenter's trade, with a Mr. Cassau, and served three years.  He 
has since been a contractor and builder, employing from five to 
eighteen workmen on his contracts, and has built many of the 
principal public and private buildings of Beardstown, and the 
county generally.  In 1860, he built a two-story brick-planing 
mill, on the corner of Monroe and Sixth streets, where he dresses 
the lumber and mouldings used in his contracts.  In 1848 he 
married Mary Hackmann a native of this county, and by this union 
they have seven children living.  Mr. Bussmann is a member of the 
German Methodist Church.

Bussmann Cassau Hackmann
=
Hanover