Ezekiel Simpson is a deceased person who appeared as a tombstone in "Treehouse of Horror I". He’s likely connected to Simpson family, as his name suggests.
In "A Trip to Simpsons Mountain" Grampa Simpson tells the rest of the family about how his father Abe Sr. and grandfather Zeke (Zeke being a nickname for Ezekiel) operated a sawmill together during the Great Depression although Grampa is probably confusing his own life with the plot of The Waltons.
