Baptized as Wilhelm Friedrich Karl Müller at St. Matthew's Lutheran Church in Chicago. Confirmed at St. John's Lutheran Church in La Porte on March 27, 1904.

Married Ida Raffel in St. Joseph on May 16, 1916, and together they had ten children:
Wilbur Fred (b. December 24, 1916, in La Porte)
Gertrude Helen (b. October 11, 1918, in La Porte)
Walter John (b. August 18, 1920, in La Porte)
Ruth May (b. April 27, 1922, in La Porte)
Leona Marian (b. June 6, 1924, in La Porte)
William Gus (b. February 5, 1926, in La Porte)
Loretta Irene (b. August 9, 1927, in La Porte)
Richard Eugene (b. June 25, 1929, in La Porte)
Gladys Barbara (b. September 3, 1931, in La Porte)
Robert Lawrence (b. October 10, 1934, in La Porte)

He worked as a boiler tester at Well McLain in Michigan City. Died of lung cancer in Michigan City on January 31, 1958, and buried in Greenwood Cemetery on February 2.

Obituary from the Michigan City News Dispatch - February 1, 1958

Funeral services for William F. Miller, 67, 509 Cleveland Ave., will be Thursday at 1:30 p.m. in the Hummer-White Mortuary. Mr. Miller died at 7:15 p.m. yesterday in St. Anthony's Hospital after an illness of four months. The Rev. Leonard Ziemer will officiate at the funeral. Burial will follow in Greenwood Cemetery. Friends may pay their respects Monday afternoon and evening and Tuesday until the time of the service at the funeral home. Mr. Miller was born Sept. 27, 1890 in Chicago, Ill., to Frederick and Wilhelmina (Levenhagen) Miller. He married Ida Rafell in St. Joseph, Mich., on May 25, 1916. He was employed as a boiler tester at Well McLain Co. Survivors include the widow and 10 children: Wilbur F. and Richard Miller, Michigan City; Walter J. Miller, Berwyn, Ill.; William G. Miller, Long Beach, Calif.; Robert L. Miller, North Hollywood, Caif; Mrs. Nathan Boyer, Mrs. Clarence Keiffer and Mrs. Elmer Brown, all of South Bend, and Mrs. Clarence Dittmer and Mrs. Lloyd Nelson, both of LaPorte.