How Well Were Harriet Tubman’s Nursing Efforts Recognized By The Union Army? Evidence?. Harriet was seen as a potentially useful asset to the union army in dealing with freed southern slaves, or contrabands. for most of her time in south carolina, tubman worked as a nurse.

Harriet was seen as a potentially useful asset to the union army in dealing with freed southern slaves, or contrabands. for most of her time in south carolina, tubman worked as a nurse.