When Robert H Manning was born on 4 August 1855, in New York, United States, his father, Thomas Manning, was 41 and his mother, Anna Maning, was 17. He married Clara or Clarissa E Nutting on 1 August 1900, in Osceola, Michigan, United States. He lived in Clifton, Grant, Wisconsin, United States in 1860 and Marion Township, Osceola, Michigan, United States in 1900. In 1919, at the age of 64, his occupation is listed as railroad conductor. He died on 22 November 1919, in Marion, Osceola, Michigan, United States, at the age of 64, and was buried in Greenwood Cemetery, Marion, Osceola, Michigan, United States.