Oscar Olivier was the son of Noel Olivier and Euranie Boone. He was born on February 25, 1861. He married Aurelia Thibodeaux on December 7, 1882 and died only 10 years later on February 8, 1892. Aurelia Thibodeaux was the daughter of Sylvestre Thibodeauz and Azeline Bihm. This couple had four children. There is no record of her birth or death.