| John Clayton YOUKER (1864 - 1915) |
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| Maud Lincoln FRISBIE (1865 - 1950) |
| Mortimer Alexander Youker | Elice El Nora Holt |
| b. 1 May 1905, Oak Park, IL d. br. occ. Research Chemist for E.I. DuPont de Nemours in Wilmington, DE edu. B.S. Degree-1926; M.S. Degree-1928 in Chemical Engineering rel. |
b. 24 Oct 1907, Paris, IL d. br. occ. edu. B.S. Degree in Education, University of Illinois-1929 rel. |
| Celeste Youker Nora Elizabeth "Betsy" Youker Marjorie Ann Youker Sarah "Sally" Ellen Youker |