February 20, 1915- Frank is born in Tampa. He attends Phillip Shore Elementary, George Washington Junior High and Hillsborough High School.
June 7, 1950- Frank, along with Sam Trafficante, Gus Friscia, Frank Ferrara, Augustine "Primo" Lazzara, Jimmy Riggio, and Frank Trafficante are pallbearers at the funeral of slain mobster Jimmy Lumia.
January 1958- Agents note that Frank lives at 4501 10 th Ave in Ybor City (where he would live until his death in 1994). At this time he works at the Capitano and Diecidue Dairy at E. Buffalo Ave and 64th St. in Tampa. He has an account at the Columbia Bank and works on a cash basis.
July 24-29 1958- Frank and his wife, along with Mr and Mrs. Primo Lazzara visit New Orleans. They stay at the Roosevelt Hotel. Word is the boys are there to meet with members of the Marcello family.
Summer 1958- Frank is described by agents as a neat dresser, as well as short and stocky.
December 2, 1958- Frank visits Santo Trafficante Jr. in Havana, Cuba. On January 26, 1959 he flies down again with Jimmy Longo on National Airlines flight 403 leaving Tampa at 9:30 am.
October 31, 1960- Word comes in from a source that Frank is trying to muscle in on the jukebox business in town from hsi headquarters at Dixie Amusements, on Columbus Ave. Frank reportedly took it over after the murder of Sam "Toto" Ferrara. Reports indicate that mobster Angelo Bedami Sr. was the gunman who whacked Toto (the gangster, not the band).
November 1, 1960- Police find a car belonging to Anthony Antone in front of Dixie Amusements. Antone is involved with the shooting of police officer Richard Cloud in 1976 and is put to death in 1980.
December 15, 1960- Frank is eating at the Columbia with Salvatore "Silent Sam" Lorenzo. No word on the entree.
February 7, 1961-FBI agents say that Frank is no longer invovled with bolita. Yeah right!
July 15, 1964- An informant observes Frank Diecidue at the Columbia restaurant. He said Frank is all dressed up and "acting like a hoodlum."
August 10, 1964- Frank attends the rosary services for Salvatore Scaglione a repescted elder in the Tampa Mafia and reportedly one-time acting boss when Santo Trafficante Jr. was in Cuba. Santo is also at the funeral home, as are Frank's brothers Tony and Tom and mobster Primo Lazzara
December 19, 1964- FBI agents follow Frank to his usual bar hangouts- the Park Lane and Peter Pan Bar on Nebraska Ave. and the Hawaiian Village.
March 25, 1965- Agents receive intel that Primo Lazzara is holding after-hours card games at his Yellow House Bar in Ybor City. Frank is one of the "big boys" who reportedly attends.
June 28, 1965- That evening an inside source for the FBI had dinner at Las Novedades restaurant in Ybor City. At 11pm that night a group of diners came in, including James Costa Longo, Santo Trafficante Jr, and Frank Diecidue. From the reports it seems that Santo Jr. made a point of telling everyone where to sit. Diecidue was at Trafficante's right side (a show of respect?) As the exciting evening went on, Santo thought the crowd needed some entertainment so he told Longo and Diecdue to get up and sing. They did, although it is not revealed what tunes they enchanted the crowd with.