LOS ANGELES, Calif.–A ceremony renaming the Crenshaw Post Office for former Mayor Tom Bradley will be held Saturday.

President Barack Obama signed a bill Oct. 13 by Rep. Diane E. Watson, D-Los Angeles, renaming the post office for Bradley, who was Los Angeles’ longest serving mayor and the only black to hold the office.

Bradley “dedicated his life to public service,” Watson said.

Bradley was a Los Angeles Police Department officer, rising to the rank of lieutenant, a City Councilman in 1963-73 and mayor in 1973-93. He died in 1998.

“The Tom Bradley Post Office will serve as a testament to his unprecedented years of dedication to the city of Los Angeles,” Watson said.

Mayor Antonio Villaraigosa and Bradley’s daughters, Phyllis and Lorraine, are among those expected to attend the ceremony, set to begin at 10 a.m. at 3894 Crenshaw Blvd.

A special pictorial postmark will be available for 30 days commemorating the event.