Question: In which county was Jeremiah Joseph O'Keefe mayor from 1973 to 1981?

full_context: Document 1: Jeremiah Joseph O'Keefe: Jeremiah Joseph "Jerry" O'Keefe III (July 12, 1923 – August 23, 2016) was an American World War II veteran and decorated fighter pilot ace. In addition, he served as a member of the Mississippi House of Representatives and was the mayor of Biloxi, Mississippi from 1973 to 1981.
Document 2: Christopher Magee (fighter pilot): Christopher Lyman Magee (1917–1995) was a United States Marine Corps aviator who became a fighter ace in World War II and was one of the more colorful members of the famous "Black Sheep" squadron, VMF-214. Known as a fearless and aggressive pilot he was credited with nine victories during the war and for his heroic actions in September and October 1943 during the Solomon Islands campaign he was awarded the Navy Cross. After the war, he dabbled in bootlegging, went to Israel and flew with the Haganah during the 1948 Arab–Israeli War and later served 8 years in federal prison for bank robberies in the Chicago area. Upon his return from prison, he lived quietly on the North Side of Chicago working as a columnist and reporter for a community newspaper. He died of surgical complications while having stomach cancer tumors removed on December 27, 1995.
Document 3: Pass Christian, Mississippi: Pass Christian ( ), nicknamed The Pass, is a city in Harrison County, Mississippi, United States. It is part of the Gulfport–Biloxi Metropolitan Statistical Area. The population was 4,613 at the 2010 census.
Document 4: Ohr-O'Keefe Museum Of Art: The Ohr-O'Keefe Museum Of Art is a non-profit art museum located in Biloxi, Mississippi, dedicated to the ceramics of George E. Ohr, the self-proclaimed "Mad Potter of Biloxi". The museum is named for ceramic artist George E. Ohr (1857–1918), as well as Annette O'Keefe, late wife of former Biloxi mayor Jeremiah O'Keefe, Sr., who was instrumental in donating money and raising funds for the completion of the museum campus.
Document 5: Mississippi County, Arkansas: Mississippi County is a county located in the U.S. state of Arkansas. As of the 2010 census, the population was 46,480. There are two county seats, Blytheville and Osceola. The county was formed on November 1, 1833, and named for the Mississippi River which borders the county to the east. Mississippi County is part of the First Congressional District in Arkansas. The Mississippi County Judge is Randy Carney.
Document 6: Joe Foss: Joseph Jacob "Joe" Foss (April 17, 1915 – January 1, 2003) was a United States Marine Corps major and the leading Marine fighter ace in World War II. He received the Medal of Honor in recognition of his role in air combat during the Guadalcanal Campaign.
Document 7: A. J. Holloway: A.J. Holloway was the Mayor of Biloxi, Mississippi (U.S.) from 1993 to 2015. He was educated in the Biloxi public schools and graduated from the University of Mississippi, where he played on the Ole Miss football team which went to two Sugar Bowls, a Cotton Bowl, and won share of the National Championship in 1960. Prior to his election as mayor, Holloway worked at the Mississippi Tax Commission for 12 years, reaching the position of senior revenue agent, and served one term on the Biloxi City Council, representing Ward 3. During his term as mayor, he oversaw the direct financial benefit to Biloxi from casino gambling that was introduced to the area in 1992.
Document 8: Bay St. Louis, Mississippi: Bay Saint Louis is a city in and the county seat of Hancock County, Mississippi, in the United States. It is part of the Gulfport–Biloxi Metropolitan Statistical Area. As of the 2010 census, the city had a total population of 9,260. The city is recovering population lost in 2005 due to Hurricane Katrina, and the Census Bureau's 2016 population estimate was 12,667.
Document 9: Biloxi Yacht Club: The Biloxi Yacht Club (BYC) is located in Biloxi, Mississippi on the shores of the Mississippi Sound. The BYC is a founding member of the Gulf Yachting Association, as well as the Mississippi Coast Yachting Association. Established in 1849, it is the fourth oldest yacht club in the United States.
Document 10: Mississippi City, Mississippi: Mississippi City is an unincorporated community in Harrison County, Mississippi, United States. It is part of the Gulfport–Biloxi, Mississippi Metropolitan Statistical Area. The community was annexed by Gulfport, Mississippi in 1965.
Document 11: Jesse B. Oldendorf: Jesse Barrett "Oley" Oldendorf (16 February 1887 – 27 April 1974) was an admiral in the United States Navy, famous for defeating a Japanese force in the Battle of Leyte Gulf during World War II. He also served as commander of the American naval forces during the early phase of the Battle of the Caribbean. In early 1942, a secret group of senior Navy officers empaneled by President Franklin D. Roosevelt assessed him as one of the 40 most competent of the 120 flag officers in the Navy.
Document 12: Jeremiah Joseph O'Keefe IV: Jeremiah Joseph "Jody" O'Keefe IV (May 21, 1946 – December 3, 2007) was an American politician and businessman.
Document 13: Pascagoula, Mississippi: Pascagoula is a city in Jackson County, Mississippi, United States. It is the principal city of the Pascagoula, Mississippi Metropolitan Statistical Area, as a part of the Gulfport–Biloxi–Pascagoula, Mississippi Combined Statistical Area. The population was 26,200 at the 2000 census. It is the county seat of Jackson County.
Document 14: Ira C. Kepford: Ira Cassius Kepford (May 29, 1919 – January 19, 1987) was a World War II flying ace who served with a land-based unit of the United States Navy. In 76 days of combat flying with the VF-17 "Jolly Rogers," he was credited with shooting down 16 enemy aircraft. At the close of his combat service in April 1944, Kepford was the Navy's leading ace.
Document 15: Biloxi, Mississippi: Biloxi ( ) is a city in Harrison County, Mississippi, United States. The 2010 United States Census recorded the population as 44,054, and in 2016 the estimated population was 45,975. Along with the adjoining city of Gulfport, Biloxi is a county seat of Harrison County.
ground_truth: Harrison County