When Gerhard Poepper was born on 22 September 1856, in Maxville, Jefferson, Missouri, United States, his father, Wilhelm Johann Heinrich Poepper, was 28 and his mother, Anna Maria Wilkins, was 21. He married Caroline Spitz on 7 October 1884, in Jefferson, Missouri, United States. They were the parents of at least 2 sons and 4 daughters. He lived in Rock Township, Jefferson, Missouri, United States for about 60 years. He died on 24 October 1943, in Maxville, Jefferson, Missouri, United States, at the age of 87, and was buried in Maxville, Jefferson, Missouri, United States.