[1] During his tenure at Springfield, Dyer was responsible for expanding the output of small arms for the Union Army.

Doubts about the wisdom of placing a southerner in such a position of responsibility were rapidly dispelled as Dyer upgraded production with energy and dispatch.

[3] On December 12, 1864, President Lincoln submitted his nomination to brevet Major General to the U.S. Senate, which confirmed the appointment on February 23, 1865.

[3] During his ten years in the office, Dyer had to contend with the demands of inventors and unscrupulous contractors, who ultimately took their various complaints to Congress.

Of note is his son, Colonel Alexander Brydie Dyer Jr. (1852–1920), West Point class of 1873; as the author of the Handbook for Light Artillery.