The postcard was sent by Karl Lauinger to his brother-in-law Albert Mayer (husband of his sister Emma) in Mainz. - Karl  Lauinger was born on August 12, 1889 in Nürnberg. His parents were Julius Lauinger, born on March 3, 1852 in Binswangen and Johanna Jeanne Lauinger, née Worms, born on April 2, 1862 in Strasbourg. Karl Lauinger was married to Hildegard Sofie Lauinger, née Landshoff, born on January 15, 1895 in Berlin. The couple had three children - Hanna, born on January 25, 1923, Thomas Julius, born on March 7, 1925 and Andreas Hans, born on July 30, 1927.