While browsing for info in Newspapers.com, I came upon an obituary for Ella. Here it is.
The Iola Register, Iola, Kansas, 8 Jan 1910, Page 3
Death at Sanitarium.
Ella Jane Stewart died early this morning at the Sutcliffe Sanitarium of tuberculosis. The body will be shipped on the evening Missouri Pacific to Tilden, Ill., for interment. The deceased was 47 years of age and had lived here for some time. Death at Sanitarium.
Find A Grave memorial = 142200676
Ella's youngest son, Wesley James Stewart, is living in Iola at the time. I'm assuming that Ella was living with him.