

In addition, Mahoney worked for several months as a private-duty nurse. Outside of the lectures, students were taught many important bedside procedures such as taking vital signs and bandaging. shift, requiring Mahoney to attend lectures and lessons to educate herself through instruction of doctors in the ward. The work within the program was intensive and consisted of long days with a 5:30 A.M. Mahoney's training required she spend at least one year in the hospital's various wards to gain universal nursing knowledge.

Mahoney worked nearly 16 hours daily for the 15 years that she worked as a laborer. The criteria in which the hospital utilized while choosing students for their program emphasized that the 40 applicants would be "well and strong, between the ages of 21 and 31, and have a good reputation as to character and disposition." It is presumed that the administration accepted Mahoney, despite not meeting the age criteria, because of her connection to the hospital through prior work as a cook, maid, and washerwoman there when she was 18 years old. The NEHWC became the first institution to offer such a program allowing women to work towards entering the Health care industry, which was predominantly led by men. She was admitted into a 16-month program at the New England Hospital for Women and Children (now the Dimock Community Health Center) at the age of 33, alongside 39 other students in 1878. Mahoney knew early on that she wanted to become a nurse possibly due to seeing immediate emergence of Nurses during the American Civil War.
