Progeny is a descendant or the descendants of a person, animal, or plant, offspring. Progenitor a person or thing of which a person, animal, or plant is descended or originates, an ancestor or a parent. It also could be a person who originates a culture or intellectual movement.

-tor indicates doing something An orator orates or makes orations. An instructor instructs. A progenitor makes progeny. Neither word is very common.