In 1929, the Pioneer Home Sunshine Society was the beginning of what is now Pioneer Auxiliary. Their purpose was to benefit Pioneer Home and provide for the physical and spiritual comforts of the residents. Fifty-five years later, the Pioneer Auxiliary continues the mission and call of the Sunshine Society with a variety of annual events and fundraising projects.

Auxiliary members are often found volunteering their time to assist with resident activities such as bingo, birthday parties, holiday baking and special events. Through major fundraising efforts such as Apple Dumpling Day, the annual Quilt Raffle, and more, Pioneer Auxiliary provides for the purchase of items needed for the care and well-being of residents of Pioneer.

Along with their commitment to Pioneer residents, each year the auxiliary sponsors educational events for employees as well as the general public.