Alabaster first came to Siam in 1856 as an interpreter in British service, during the reign of King Mongkut. He later became the acting consul, during which time he worked closely with the king, including on the building of the first modern road in Thailand, Charoen Krung Road. He resigned from consular service after a dispute with Somdet Chaophraya Sri Suriwongse, and returned to Britain, where he completed his 1871 book The Wheel of the Law, a study of Buddhism which incorporated a translation of Chaophraya Thiphakorawong's Nangsue Sadaeng Kitchanukit.
Return to Siam
Alabaster returned to Siam in 1873 to serve as private secretary to King Chulalongkorn. He oversaw many modernization efforts at this time, many of Thailand’s firsts. This included the building of roads, bridges, libraries, and museums, the use of modern cartographical techniques, and sending students abroad for study. One of his roles was Director of the Royal Museum and Garden; he sent botanical specimens to China for his brother Chaloner, an amateur plant collector. He was the first director of the kingdom's map-making division, established in 1875, and had teams of surveyors develop maps for use in building roads and telegraphs as well as protecting territorial waters.
Death
Alabaster died in 1884, at the age of 48, three days after suffering paralysis of his lower jaw. He remained in his position until his death, when he was buried with the full honors of a Phraya in Bangkok Protestant Cemetery. His monument there, erected by order of Chulalongkorn himself, is considered the finest in the cemetery. While well-regarded by the Thais, he was disparaged by the British Foreign Office as "a good for nothing fellow who was dismissed," likely due to his efforts at keeping Siam from becoming a British colony.
Descendants
Alabaster married Palacia Emma Fahey in 1865; they had four children. He also married a Thai woman, Perm, during his second sojourn in Siam; they had two sons, both of whom held the rank of Phraya. His descendants were given the Thai surname of Savetsila, meaning "white stone". He was the paternal grandfather of Siddhi Savetsila, Thailand's Air Chief Marshal.
