Diary of Alexander G. Downing: Saturday, January 25, 1862

The report came that we were to be brigaded today — the Eleventh, Thirteenth, Fifteenth and Sixteenth Iowa Regiments are in one brigade. Hurrah for Iowa! The four regiments are to form an Iowa brigade and the organization will date from today.

Source: Alexander G. Downing, Edited by Olynthus B., Clark, Downing’s Civil War Diary, p. 30