Schroeder is the default baby character again here, filling in the same kind of role that would later be filled, in turn, by Lucy, Linus, then Sally. These kinds of baby jokes would decrease in number over time, presumably as Schulz's own connection with infants (such as his own young kids) diminished over time. I barely remember seeing much of Rerun's infanthood, he just sort of settled into being the preschool character.
