GARFIELD DEL DUCA SR. was the son of Ottavio Del Duca and his second wife, the former Pasqualina Guardelli. Records indicate that he was born on March 20, 1896 or March 21, 1897 in Vineland, New Jersey. He was one of 14 children. The Del Ducas had only recently moved to Vineland from Philadelphia, as older brother Arthur had been born there in 1893. apparently left Philadelphia by 1896,  World War I. The 1900 Census shows the family in Buena Vista Township in Atlantic County, New Jersey

Garfield Del Duca married Margaret Turner and on August 5, 1914 a son, Garfield Jr. was born. The Del Ducas had come to Camden by 1917. The City Directory for that year shows Garfield Del Duca him operating a pool hall at 701 South 3rd Street. Brother Arthur "Gyp" Del Duca was still living in the Vineland area, where he worked as a bartender in June of 1917.

When Garfield Del Duca registered for the draft in June 5, 1918 he was working at a shipyard in Gloucester City, New Jersey. He was then living with his wife and son at 309 Berkley Street in South Camden.

By February of 1915 Pasqualina Del Duca had moved to Camden, settling first at 310 Stevens Street and by 1920 at 309 Stevens Street. 

The 1920 Census shows Garfield Del Duca living apart from his wife and son. His wife Margaret and their son Garfield Jr. were still living in Bridgeton, New Jersey with Margaret's mother Mary Turner.

Brother Arthur Del Duca first appears in Camden City Directories in 1923. He was by then married, and operating a restaurant at 201 Stevens Street. Despite Prohibition being in force, it his highly probable that he was serving alcohol as well. Arthur Del Duca does not appear in the 1924 City Directory. It is possible that he an his wife Jennie were making their home in Gloucester City by this time. 

By 1924 the Del Duca brothers were in the bar business in Camden, Prohibition notwithstanding. This brought them in contact with those on both sides of the law, with the inevitable consequences and notoriety.

City Directories beginning in 1924 show Garfield Del Duca at 674 Fairview Street, not far from the New York Shipbuilding Corporation shipyards with brothers Anthony, Louis and Richard. News accounts of the time indicate that they were running a speakeasy and that brother Arthur was also heavily involved. Throughout the 1920s and into the 1930s this branch of the large Del Duca clan were having issues with the law. with the inevitable consequences and notoriety.

The 1930 Census shows Garfield Del Duca and his brothers Louis and Anthony living at 674 Fairview Street. His wife Margaret and their son Garfield Jr. were still living in Bridgeton, New Jersey with Margaret's mother Mary Turner.

By 1940 most of the Del Ducas had left Camden. Garfield Del Duca remarried in the 1940s. The 1947 Camden City Directory shows Dorothy Del Duca as proprietress of the Victoria Bar and Grill at 2512 Federal Street in East Camden. 

Garfield Del Duca died on August 29, 1951, survived by his wife, the former Dorothy Maloney.