Though born in Iowa in 1866, Amos Calvin Miller grew up in Erie County, Ohio. He was the son of Wells W. Miller and Mary Caswell Miller. Amos Calvin Miller was a graduate of Sandusky High School, and he graduated from Oberlin College in 1889. He obtained his law degree from the Chicago Kent College of Law in 1891. In 1949, Amos Calvin Miller was the senior partner in the law firm of Miller, Gorham, Wescott & Adams of Chicago. Mr. Miller had served a president of both the Chicago Bar and the Illinois State Bar Associations. He was a member of the Illinois Constitutional Convention from 1920 to 1922.
Oberlin College was the recipient of many scholarships from Amos C. Miller, where he served as a trustee from 1912 to 1947. Mr. Miller was very active in civic organizations. He had been a member of the Lincoln Centennial Association, the American Bar Association, the American Law Institute, the Chicago Law Institute, the Art Institute, the Illinois State Historical Society, and the Chicago Historical Society. Mr. Miller also operated the family farm in Erie County, which had been in operation for over one hundred years.
On October 18, 1949, Amos Calvin Miller died in Wesley Hospital. An obituary for Mr. Miller appeared in the Chicago Tribune on October 19, 1949. Biographical information about Mr. Miller is also found on the Genealogy Trails History Group web site. Amos Calvin Miller is buried with his wife, the former Jeanne Gilbert,at Castalia Cemetery in Erie County, Ohio. He was survived by sons Gilbert A., Wells W., and Norman A., and six grandchildren and two great-grandchildren.