The History of the Nurse's Cap - Nurses’ caps had both practical purposes and symbolic significance. Though it’s difficult to pin down an exact time period when wearing caps became standard practice, there is a mild consensus that they became prevalent in the mid-1800s. Some say that caps were originally donned by the Sisters of Charity of St. Vincent de Paul in Paris, where one of the first official nursing schools was established in 1864.
Murphy's Laws of Nursing I think Pam has mentioned all of these at least once since she graduated from nursing school...
vintage coca cola ads - Google Search
Helping the Wounded - probable WWII Red Cross recruitment advertisement - illustrated By Ellen Barbara Segner.