Secret Service detail for Bush, code name 'Timberwolf,' ends

Members of the U.S. Secret Service carry the casket with former President George H. W. Bush to a hearse at George H. Lewis Funeral Home after a family

Members of the U.S. Secret Service carry the casket with former President George H. W. Bush to a hearse at George H. Lewis Funeral Home after a family

FILE - In this July 24, 2013, file photo provided by the Office of George Bush, former President George H. W. Bush poses with Patrick (last name withh

FILE - In this July 24, 2013, file photo provided by the Office of George Bush, former President George H. W. Bush poses with Patrick (last name withh

A joint military honor guard carries the casket of former President George H.W. Bush after it arrived by a presidential funeral train at Texas A&M Uni

A joint military honor guard carries the casket of former President George H.W. Bush after it arrived by a presidential funeral train at Texas A&M Uni

Former President George W. Bush, middle, with former first lady Laura Bush, covers his heart as the casket of his father, former President George H.W.

Former President George W. Bush, middle, with former first lady Laura Bush, covers his heart as the casket of his father, former President George H.W.

COLLEGE STATION, Texas (AP) — The U.S. Secret Service has ended its detail for George H.W. Bush after nearly 40 years of protecting the former president, who was known by the code name "Timberwolf."

Bush spokesman Jim McGrath says the agents' detail officially ended at 6 a.m. Friday following Bush's burial on Thursday at his presidential library at Texas A&M University.

Bush died on Nov. 30 at the age of 94. He was buried next to his wife, Barbara, and their daughter Robin, who died at age 3.

Secret Service agents served as honorary pallbearers during some of this week's events honoring the 41st president. On Twitter, the agency paid tribute to Bush and shared photos from 2013 , when Bush shaved his head in support of an agent's 2-year-old son who had leukemia.