Salvatore Tirocchi, son of Eugenio and Maria and brother to Nazzareno, Giuseppe, and Tito, was one of the first family members to come to the United States. He and two of his older sons, Luigi and Gerardo, entered the U.S. in 1902. It is unclear when they arrived in Providence, but this was probably by 1907, when Salvatore's wife Luisa and their younger children joined him. In 1908, Salvatore was listed as residing at 18 Alto Avenue in the Providence City Directory. According to the 1910 federal census, he lived with his wife and children at 50 What Cheer Avenue. In that year, Salvatore was operating a cement-block manufacturing enterprise, while three of his older boys (Gerardo, Giuseppe, and Augusto) worked as laborers for a railroad and Luigi was employed by the City of Providence. The only daughter, Elvira, was a spinner in a worsted mill, and the youngest son, Giovanni, attended school. While the parents are listed as speaking Italian, all of the children spoke English and, like their father, were literate.(6) Between 1910 and 1920, Salvatore with five of his six sons - Luigi, Gerardo, Giuseppe, Augusto, and Giovanni - developed the Rhode Island Improved Cement Works Company and the Rhode Island Laundry Company. By 1920, Salvatore was managing the Tirocchi Brothers Motor Trucking, which offered local and long-distance hauling. After Salvatore's death in 1925, his son Luigi assumed presidency of the family enterprises. Other brothers filled the vice-president, secretary, and treasurer positions. After World War II, the brothers added a real estate firm to the list.

A second branch of the family - children of Salvatore's brother Tito Tirocchi - first appeared in the 1906 Providence City Directory, where one of Tito's sons was recorded as a laborer boarding at 25 Hillhurst Street. Tito's daughter Maria and his son Giuseppe arrived in 1907. The 1910 census placed Maria and her husband Francesco Furia at 489 Union Avenue with their ten-month-old daughter Armelinda. Francesco had immigrated in 1906 and was working as a street laborer for the City of Providence. Maria's brother Giuseppe boarded with the family and was also a street laborer. In 1914, Tito's sons Eugenio and Mario were boarding at 140 Prudence Avenue. Two years later the Furias moved to 144 Prudence Avenue, which became their longtime family home. Tito left Italy for Providence late in life to be near his children after the death of his wife. Like Salvatore and his sons, male members of Tito's family were first employed as laborers; and like their uncle and cousins, they soon turned to business ventures. By 1921, Eugenio and his brother Giuseppe were respectively vice president and secretary/general manager of Ideal Concrete Products Company, Inc., on Hartford Avenue. Within a few years Giuseppe was functioning as president and general manager, while his wife Assunta served as secretary for the business. Eugenio moved on to cement contracting. Giuseppe then established J. Tirocchi Construction, which his grandchildren continue to operate as AA Construction in Johnston. The Hartford Avenue property was the location for a number of businesses, including a tire-retreading plant and a miniature golf course. Through the late 1920s and early 1930s, Tito's son Angelo worked as a laborer and janitor. In 1935, he opened an auto service station at 314 Hartford Avenue, which he continued to operate after World War II. Tito's youngest son, Mario, listed himself as a contractor and builder in 1925 and branched out with the Tirocchi Cement Block Company. In the latter years of the 1920s, he established the Rhode Island Column Company, then moved into the auto-service sector in 1932 with the Huntington Avenue Filling Station. After the Second World War, he opened a tire-retreading company. Later, he would operate a milk delivery business, an auto service station, and another tire-retreading business.