By coincidence because the writers had been unaware the name of Groening's grandfather, went with Abraham, shortened to Abe, mainly because in the Period two episode "Previous Dollars" they desired his title to be similar to his new girlfriend Bea because they achieved when retirement home staff mix up https://charlieoxemt.dbblog.net/10993972/the-smart-trick-of-jigsaw-for-plastic-that-nobody-is-discussing