Shortly after the dedication, Harry and Paquita Duffield arrived, the last Witness missionaries to be expelled from Cuba.

In time, more missionaries arrived, including Pete Paschal, Amos and Barbara Parker, Richard and Belva Stoddard, who had served in Bolivia, and Jesse and Lynn Cantwell from Colombia. The missionaries gave further support to the burgeoning preaching work.

In September 1979, Abigail Pérez and his wife, Georgina, arrived as missionaries. They were assigned to the circuit work. Later, in 1987, Gilead graduates Tom and Shirley Dean came to bolster the preaching work. The territory also benefited from an influx of special full-time servants from Puerto Rico. In August 1988, Reiner and Jeanne Thompson were assigned to the Dominican Republic, their fifth missionary assignment.