William A Disney died in Buffalo (or Buffalo Twp) in Sangamon County on 26 May 1919.His death was recorded the following day.His age at death is not in the index. I did not find any information on Lillian Henry Disney.
Nor did I find their marriage, but, as was often the case then, I found probable brothers and sisters marrying in Sangamon Co.On 17 Jan 1893, Rufus Disney married Rosa Henry.I suppose that could be our subject couple, but I seriously doubt it.
There were several Disney deaths recorded in Sangamon Co at about that time.None show an age at death, and I abridge:
William ABuffalo1919 Charles HurtIlliopolis1921 Eddiedo (ditto) 1918 Sarah Janedo1931 Chester IMechanicsburg Twp1918 Hannah JSpringfield1946
You can easily surmise there were families in Warrensburg, Decatur, and Harrisburg, too.