After the fall of Fort Sumter, Dix 
volunteered her 
services to the Union. In June 1861, 
Secretary of 
War Simon Cameron
 appointed her head of female nurses. 
The Crimean 
War had set a precedent for using women 
as nurses, 
but the practice
 was alien in the United States, and Dix 
faced 
opposition from many army doctors. In 
spite of the 
obstacles, the small,
 soft spoken woman worked without pay 
and molded an 
efficient operation dedicated to 
relieving the 
suffering of sick
 and wounded soldiers. She had total 
authority over 
all female nurses and laid down strict 
criteria for 
their selection.
 Nurses were required to be over 30, 
plain looking, 
drabbily dressed, and not adorned with 
either curl 
or jewel.
 Thousands of eager young women were 
excluded from 
service for being too pretty, too young, 
or 
"overanxious." Some
 subordinates considered Dix high-handed 
and 
arbitrary, and they dubbed her 
"Dragon 
Dix".
Dorothea Dix's job as superintendent of 
nurses of the U.S. Army during the Civil 
War was but 
one episode in a
 life spent crusading for prison and 
hospital 
reform.