| Employees of Blood Services of South Dakota |
| Employees of Nursing Homes, Retirement Homes within Rapid City |
| Employees of West River Mental Health Center |
| Members, employees, and employees of members of the Black Hills District Dental Society |
| All other Health Care Professionals (e.g. Psychiatrists, Psychologists, Optometrists, Chiropractors, and such) who work in the Rapid City area |
| Spouses of persons who died while within the field of membership of this credit union |
| Employees of this Credit Union |
| Persons retired as pensioners or annuitants from the above employments |
| Members of their immediate families |
| Organizations of such persons |