The famous person Henry Wesley Mountz is associated with one of more of the De Kalb County historic places.
Some of the country's most noteable architects helped create the De Kalb County places including Sheets Inc., A. M. Strauss, Frank Reynolds, Samuel Bevier, Jacob Shull, J. Perry Long, Henry Davidson, J.H. Haag, John Mckay and William Fountain. Prominent architectural styles found in De Kalb Country are Italianate, Greek Revival and Colonial Revival.