My Great Grandmother Mary Agnes Keller (nee Bannon) died in St.Louis County on 7-13-1942. The only information I have is that she might have possibly died while in Pine Crest Nursing Home in Manchester, MO. She could be listed as Mary Agnes Patke-Keller as she was married and widowed prior to marrying my Great Grandfather Frederic/Frederick Keller. I am searching for an obit or cemetery location as to where she is buried. Any information would be greatly appreciated!