Román Magallanes in the 1930 Census is Maria del Carmen's father. He was Feliciana Alvarez's husband. Their son Victor was christened 1 Dec 1910. Victor was born 18 Nov 1910 in "La Joya". See record no. 159 in the RH page here.
According to the 1930 Census, Román Magallanes was born abt. 1870.
Despite there are no christening record nor marriage(s) record(s) for him by now, there is no doubt he was the son of Victor Magallanes and Maria Nabor del Real.