Originally established in 1902 as a Winchester High School sorority, the En Ka Society has thrived as a women’s volunteer service organization for over 100 years. Early in the group’s existence, members chose for their motto, “Nachmachen dem Knaben”, which means "to imitate the boys." It is from the initial letters of the words in this motto that the Society derives its acronym, “N-K” or “En Ka”.

During the first decades, members of the organization began their campaign of good works by sewing for the Visiting Nurses, preparing surgical dressings for the Red Cross, and sending toys to children in war-stricken Europe.  In 1916, a Hospital Fund was established to furnish a room in Winchester’s new hospital. 

In the 1920’s, when the Winchester School Board voted to prohibit members of secret societies from participating in high school activities, the En Ka Society briefly disbanded.   

In 1932, past members reorganized and revived the Society as a women’s group focused on aiding all Winchester charities.  The current organization structure and mission closely resemble this 1930’s model for volunteerism.