The probable biological mother of Mickey and Donald is encountered in Down to Earth but is not named. She and Nesseref spend a night in the same guest barracks in Egypt. This female approaches Nesseref and asks for ginger. Nesseref chides her on the socially destructive consequences of ginger use, to which the other female responds dismissively. Soon the conversation turns to the topic of hatchlings conceived because of unseasonable sexual behavior, and much to Nesseref's horror, the other female brags that, when she became gravid as a consequence of this side effect of ginger tasting, she immediately sold her eggs to unknown Tosevite agents in exchange for large quantities of the herb.
Upon returning to Earth at the end of Homeward Bound, Sam, Jonathan, and Karen are introduced to a large number of descendants who were born in their absence. Most are unnamed.