John “Jack” Moyna graduated from St. Joseph School in Elkader in 1952. After graduation, Jack joined the Army and served as a Combat Engineer, helping to rebuild Germany after World War II. In 1956, Jack returned to Elkader, and together with his father, Cecil, and brother, Jerry, they formed C.J. Moyna & Sons.

Jerry Moyna also graduated from St. Joseph School in 1956. After graduation, he worked for the Bureau of Reclamation on the Trinity Dam Project in California. Jerry served in the Army from 1960 to 1962 in Germany. After his return from Germany, he joined his father and brother in the family business.

John Patrick Moyna is a 1979 graduate of Central Community High School. After graduation, he became a partner in C.J. Moyna & Sons. John Patrick has also invented equipment that have increased production and reduced down time on construction sites. His inventions led to the creation of E-Ject Systems, a company which builds equipment for the earth moving industry.

Together, Jack, Jerry and John Patrick built their company into one of the top construction companies in the midwest. In its early years, C. J. Moyna & Sons primarily did custom farm work and built farm to market roads. The company then progressed to constructing local roads and then state highways throughout the midwest. In 2002, they expanded to include E-Ject Systems.

Throughout the years Jack, Jerry and John Patrick have dedicated many hours of their time and resources to the schools and communities in the Central School District.