Hacienda Santa Rosa's original owner has been reported as being Maximiliano de Rivera.  The plantation house was built ca. 1842 and remained a landmark in Hatillo until around 1999 when it was destroyed by a fire.

El Nuevo Dia newspaper edition of December 9, 2009, states that on June 10,1879 José Ignacio Corujo y Arcas sold Hacienda Santa Rosa to Pablo Curbelo for $10,000.  It also stated that in 1880 the hacienda consisted of 504 cuerdas and produced muscovado sugar and molasses for local consumption.  We do not know when Corujo acquired the hacienda, presumably from Maximiliano de Rivera.

Pablo José Curbelo Gonzalez (1840-1880 ) was a Spanish immigrant from the Canary Islands who in the 1872 Slave Register appears as owner of seven slaves in Barrio Pueblo of Hatillo.  He was married to St Thomas born Luisa Waterson Hinez (1832-1924).

Spanish immigrant from Mondoñedo in the Lugo Province Ramón Millán Samaniego (1828-1888) acquired the hacienda from Curbelo.  We do not know the exact date but it must have been sometime between Curbelo's death in 1880 and his own death in 1888.

The Millán and Curbelo families waere related by marriage.  In 1902 José Ramón Millán (1865-1907), son of Ramón and his wife Cristina Rivera Dávila, married Rosalía Hernández Curbelo daughter of Jose Hernández and Maria Asunción Curbelo Mercado (1850-1937) daughter of also Spanish immigrant from the Canary Islands Alejandro Curbelo. 

Ramón and Cristina had eleven children, eight of which survived Ramón at the time of his death in 1888.  It is reported that of the surviving children, Hacienda Santa Rosa was inherited by Vicenta Millan Rivera (1877-1940) and Rosalina Millan vda. Niel (1868-1966).

By 1902 the hacienda consisted of 470 cuerdas of which 150 were used to grow sugarcane.  The Camuy River divided its lands which spread between the municipalities of Hatillo and Camuy and consisted of low lands suitable for growing sugarcane, rolling hills to grow pasture and unused mountain slopes.

The drone pictures below were taken in 2022 and show how close the sugar factory and chimney were to the Camuy River.  At the time the pictures were taken, work was being done on the water plant that now is just a few feet from the old chimney.  The drone photos were taken by and made available courtesy of José Alemán.