They actually stuffed the flowers and spices in there thinking that the smell of these items would prevent them from catching the disease..."Ring Around The Rosie" also refers to the black plaque. Pay attention to the words lol!
Helen Richey was Amelia Earhart's copilot on one flight across the Atlantic. She became the first woman hired to be a pilot by a commercial airline in the US. She was the first woman licensed as an aviation instructor. She was the first woman to fly a scheduled mail flight. During WWII she commanded a group of women pilots for the British Air Transport Auxiliary, flying bombs between factories and airbases. She died by suicide at age 38
Street Doctor - “vendors of pills, potions and quack nostrums". Notice that this man is disabled. Disabled people suffered greatly in this period and had little choice but to do this sort of work, as they were not employable due to their disabilities.