Frederick Charles Foth died September 14, 1926. His death notice appeared in the Buffalo News, Thursday, September 16, 1926 on page 34. Two years later, a memorial notice was inserted in the Buffalo Evening News.
Augusta lived with her daughter, Florence Feltz, in Cheektowaga until she died January 29, 1935. I believe both Fred and Augusta are buried in Holy Rest - Pine Hill Cemetery (Old German Lutheran Trinity Cemetery) in Buffalo.