Jerman's name was easily spoken by former presidents, including George W. Bush and former first lady Laura Bush, who issued a statement to NBC News on Wednesday.
“He was a lovely man,” the Bushes said. “He was the first person we saw in the morning when we left the Residence and the last person we saw each night when we returned.”
Garrett recalled her grandfather being very close to the Bush family.
“George Bush Jr. has a little trouble adapting to a new environment, some trouble sleeping. Well, my grandfather would actually sit with him in his bedroom until he fell asleep,” she told WTTG.
Jenna Bush Hager also took a moment on NBC's "Today Show" on Thursday to remember Jerman.
Garrett told the station that first lady Jackie Kennedy led the push for her grandfather’s promotion in the early 1960s.
“Jackie O actually promoted him to a butler because of the relationship,” Garrett said. “She was instrumental in ensuring that that happened.”
A now-famous photo of Jerman with former President Barack Obama and his wife Michelle Obama on a White House elevator appears in the former first lady’s memoir “Becoming.”
Garrett described Jerman as a family man who devoted his life to serving others.
“I want the world to remember my grandfather as someone who was really authentic,” Garrett told WTTG. “Always being yourself. That’s what he taught our family, that’s what thrives throughout our family. And that’s what we’ll continue to carry on, his legacy.”
Jerman and his wife had five children, 12 grandchildren and 18 great-grandchildren, according to WTTG.