Which group consisted of women who volunteered to make clothes, nurse wounded soldiers, run camp kitchens, and perform many other tasks to the union during the civil war?

WWAD

Explanation:

The group that was consisted of women who volunteered to make cloths and treat/nurse wounded soldiers  and also perform other tasks to hep the Union during the civil war was WWAD  and there were consisted of nearly 20000 women which included working class women , white and black , free and enslaved .

During the civil War some women disguised as soldiers and fought at war fronts during the American civil war as well.