According to the St. Louis Genealogical Society website, there was a Marie E. Melchior who died at age 88 and was buried at Resurrection Cemetery on 7 Dec 1987. You can search Resurrection here: http://archstl.org/app/cemeteries/burial_search
The STLGS website also shows a naturalization for a Conrad Melchior from Germany on 16 Oct 1902 at age 38.
George was buried at St. Marcus cemetery on 23 Feb 1959. You will find his death certificate and Sophie's at http://www.sos.mo.gov/archives/resources/deathcertificates/#...
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