In the first years of the newly formed Eastern Pennsylvania Mennonite Church, Aaron served as editor for their official publication, commonly referred to as The Testimony. During the five years while Aaron was the editor, the testimony went from 8 pages to 12 pages, most of which recorded the news of the fledgling conferring fellowship.
In these five years, Aaron wrote fifty editorials and articles. These are a lasting legacy that reflect how Aaron as well as the brothers who surrounded him met and overcame the challenges of their day. We can gain instruction and inspiration from their example.