The name da Luz is said to be of Portuguese origin meaning "from the light" and pronounced da Loush, da Loosh. (-uh as in "the"; -oo as in "boot") in Portugal.
According to the United States Census of 1920, up to 8 da Luz families lived in Massachusetts. Iowa had up to 4 families, and only 1 family each lived in New Jersey, Pennsylvania, Michigan, California, Arkansas, and Illinois. No da Luz families were counted in any other states that year. The da Luz name remains uncommon in North American population.
A Maria da Luz. (said to be a common name in Portugal) was my great grandmother and a Portuguese immigrant to Massachusetts @ 1903-4. She came from her birthplace of Santa Maria Island, Azores, Portugal. Her parents were Manuel Cabral and Anna Alves and it is unknown if they also immigrated. In the then Portuguese fishing village of Provincetown, Mass., Maria married William Caton (Caetano). He was also of Azorean heritage. She gave birth to 6 children and is said to have died in the historic flu epidemic of 1917-18, but death date and place are yet to be proven.