He was a teacher in seminaries and institutes with the Church Educational System for many years.

Prior to his call as a general authority, he worked as an instructor in the Church Educational System.

Merrill was a key figure in the development of the Church Educational System in the early twentieth century.

He later worked as a coordinator for the Church Educational System.

Rojas continued to work for the Church Educational System and later in area administrative offices.

Prior to his call as a general authority, he worked as a teacher and administrator in the Church Educational System.

He then became a seminary principal in the Church Educational System.

It was under his direction that the system came to be known as the Church Educational System.

He previously worked for the Church Educational System as a seminary teacher and director of curriculum.

He was the first superintendent of the Church Educational System from 1888 to 1901.