In 1784, three years after the foundation of Los Angeles, Juan Jose Dominguez (1736–1809), a Spanish soldier who arrived in San Diego, California in 1769 with Fernando Rivera y Moncada, in recognition of his military service, received the roughly Spanish land grant, the Rancho San Pedro. Part of this land contained what became known as Gardena Valley. After the American Civil War veterans bought parts of the land, and soon ranchers and farmers followed suit. Union Army Major General William Starke Rosecrans in 1869 bought . The "Rosecrans Rancho" was bordered by what later was Florence Avenue on the north, Redondo Beach Boulevard on the south, Central Avenue on the east, and Arlington Avenue on the west. The Rosecrans property was subdivided and sold in the early 1870s. One of those became the Amestoy Ranch. Gardena proper began in 1887 when the Pomeroy & Harrison real estate developers subdivided the ranch, anticipating the coming of the Los Angeles and Redondo Railway. Civil War veteran Spencer Roane Thorpe is credited with starting the first settlement in Gardena in 1887. Railroads put Gardena on the map following a real estate boom in the Los Angeles area in the 1880s.