In the comic strip Peanuts, what is Snoopy's mother's name?

Snoopy's parents are minor animal characters in the "Peanuts" comic strip by Charles M. Schulz. They made one appearance each in the strip.

Snoopy's mother is one of the few Peanuts characters to have first appeared in an animated television special before later appearing in the comic strip, (the only other one being Snoopy's brother Andy). Snoopy's mother, named as Missy in the special, is seen in a flashback in "Snoopy's Reunion", which was first televised on May 1, 1991. Her first appearance in the comic strip is in the strip from July 26, 1996, in which she travels on a World War I troopship to visit Spike (main character in the Peanuts comic strip) who is ill.