Jefferson married Estella Marie Glaser about 1914 in Ohio, USA. Estella (daughter of Francis Joseph Glaser and Louisa C. Hartenstein) was born on 27 Feb 1892 in Bellaire, Belmont County, Ohio, USA; died on 16 Oct 1961 in Bellaire, Belmont County, Ohio, USA. [Group Sheet] [Family Chart]

1. Francis J. Conrad was born on 25 May 1917 in Belmont County, Ohio, USA; died on 1 Jan 1963 in Bellaire, Belmont County, Ohio, USA.
2. Ann Louise Conrad was born on 12 Aug 1919 in Belmont County, Ohio, USA; died on 16 Jul 1991 in Bellaire, Belmont County, Ohio, USA.
3. Fredric Paul Conrad was born on 14 Sep 1921 in Belmont County, Ohio, USA; died on 29 May 2004 in Belmont County, Ohio, USA; was buried in Mount Calvary Cemetery, Bellaire, Belmont County, Ohio, USA.
4. James Jefferson Conrad was born on 11 Nov 1924 in Belmont County, Ohio, USA; died on 1 Aug 2003 in California, USA.
5. Madelon Cynthia Conrad was born on 7 Jul 1929 in Belmont County, Ohio, USA; died on 24 Dec 2002 in Las Cruces, Dona Ana County, New Mexico, USA.