I have a newspaper clipping from April (1934?) recording the death of Elizabeth J. Brueggeman (Herrell). I have been unable to locate any other specifics of her death or internment. A visual check of the Valhalla Cemetery records in St. Louis, showed no record of a burial there. Tracking the fate of William H. and Pearl E. have proven equally fruitless. There is anecdotal evidence that Pearl married a man named Dupuy, although nothing concrete.
Working backwards, the dates of death and internment could be March 31 and April 2, 1928 or 1934.
Please check my entry for Elizabeth Herrell for an image of the obituary. https://picasaweb.google.com/109144126006294016099/ScrapbookPhotos#5734246917086221362