When Ross A Fillerup was born on 9 August 1912, in Hachita, Grant, New Mexico, United States, his father, Charles Richard Fillerup, was 38 and his mother, Mary Evalean Johnson, was 28. He married Christianna Breinholt on 23 September 1933, in Blanding, San Juan, Utah, United States. They were the parents of at least 2 sons. He lived in Utah, United States for about 5 years and Election Precinct 3 Blanding, San Juan, Utah, United States in 1940. He died on 27 March 1950, in Alta, Salt Lake, Utah, United States, at the age of 37, and was buried in Murray, Salt Lake, Utah, United States.