Justus Louis Nicholas Noerteman was born in August 1829 in Hanover, Germany. He married Christine Schlieper on December 26, 1853, in St. Louis City, Missouri. Louis died on November 21, 1909, in St. Louis City, Missouri, at age 80, and was buried in St. Peter's Cemetery, Normandy, St. Louis County, Missouri.

Christina Schlieper/Slieper was born on September 9, 1835, in Hanover, Germany, died on July 7, 1903, in St. Louis City, Missouri, at age 67, and was buried in St. Peter's Cemetery, Normandy, St. Louis County, Missouri.

Louis came to the United States in 1847 when he was 18, and Christina came with her parents in 1839 when she was four years old.

His name was spelled Lewis Noertemann in a book of German poetry published in 1848. Their great granddaughter treasured the book in 2010.

They were the parents of nine or ten children. Louis George Fredrich, George William, and William Charles, and Child all died in the 1860's. August Julius, Minnie, Louis William Nicholas, William Albert, Edward William, and Harry lived to be adults. Child was not listed in the family book of poetry as all the others were.

Louis enlisted for three months in 1861 during the Civil War as a Union soldier. He was a member of the Missouri Home Guard at the opening of the Civil War and was with General Nathaniel Lyon at the taking of Camp Jackson. After the the Civil War, Louis was appointed by Postmaster Chauncey I. Filley to the position of letter carrier. He held this position until he died.

One of the residences on the route assigned to Louis was General Frost's, the Confederate leader at Camp Jackson. General Frost told the Union soldier and letter carrier that he liked his new gray uniform at Christmas. Then he gave Louis a $5 gold piece and every Christmas afterward.

Louis gave sworn testimony in February 1881 at a Congressional hearing on mail delivery in the contested election of "Sessinghaus vs. Frost" in St. Louis City, Missouri. Louis told the examiner that he had lived in the city since December 1848; would be 52 years old this summer; lived at 1113 North Seventeenth Street; and was a letter carrier for seven years last August.

Louis was killed in a street car accident on November 21, 1909. A witness said the car did not stop when Louis tried to board on his route as letter carrier. He fell head headlong into the street and lay there unconscious. The witness and a policeman picked him up. Louis died in five days.

He was one of the first Odd Fellows in St. Louis. He was a member of the Golden Rule Lodge No. 109. The I. O. O. F., International Order of Odd Fellows, was a community of workers. When Louis died he was the oldest letter carrier in St. Louis City.