Jerman started his job at the White House in 1957 when he worked as a cleaner for the Eisenhower administration.
His granddaughter, Jamila Garrett, told FOX 5 DC on Wednesday that he was promoted to White House butler during John F. Kennedy's term as president.
“Jackie O. actually promoted him to a butler because of the relationship.
She was instrumental in ensuring that that happened," Garrett said.