Paul Walter Ludwig, Sr. was the seventh of ten children born to Friedrich Reinhold Ludwig and Anna Hedwig Hübner Ludwig. Here is a list of those children.

• Friedrich Ernst Ludwig — known as Friedrich. Born June 16, 1888 near Russell KS. Died June 17, 1888 near Russell KS. Buried near Russell KS.
• Emma Dorthea Ludwig Schukei Hill — known as Dorthy. Born June 22, 1889 near Russell KS. Died May 27 1969 in . Buried in .
• Margaretha Johanna Ludwig Bodtke — known as Margaret. Born May 12, 1891 in . Died June 12, 1964 in . Buried in .
• Anna Johanna Ludwig Bier — known as Johanna. Born October 20, 1892 in . Died October 6, 1925 in . Buried in .
• Emma August Ludwig Oeltjen Meyer — known as Emma. Born August 9, 1894 in . Died in . Buried in .
• Clara Minna Ludwig Meyer — known as Clara. Born May 1, 1896 in . Died November 4, 1959 in . Buried in .
• Paul Walter Ludwig — known as Paul. Born Dec. 28, 1898 in Appleton City MO. Died July 20, 1992 in Fort Wayne IN. Buried in Decatur IN.
• Walter Herman Ludwig — known as Walter. Born August 26, 1900, in . Died May 16, 1957 in . Buried in .
• Hedwig Friedericke Amalie Ludwig Ehlers — known as Hattie. Born August 5, 1901 in . Died in . Buried in .
• Reinhold Heinrich Ludwig — known as Rein. Born Dec. 25, 1902 in . Died in . Buried in .