Who was the superintendent of nurses during the civil war?

Dorothea Dix.

She started out as the advocate for the mentally ill in the 1820's because the asylums for the mentally ill were in horrible shape and began a national movement for treating the mentally ill.

The United States Sanitary Commission was an organization of civilian volunteers lead by Dorothea Dix, mobolized larged numbers of female nurses to serve in field hospitals. By the end of the war Women were the dominate force in nursing.