Re inquiry on Ellen Peeler (Union County Illinois).
My grandmother was Oma Peeler Moore who was born in the 1870s at a place called West Eden Illinois in Johnson County. Cypress is in Johnson County not Union.
Oma's parents were Jacob Calvin Peeler and Nancy Evers Peeler. I believe Jacob Calvin and his parents moved to Illinois from North Carolina where Jacob Calvin was born in the 1840s.
Oma married John William Moore and moved to Anna in Union County Illinois wher she lived until the 1950s. She died in Indianapolis Indiana in 1960 or 1961. For those familiar with Anna, she ran "Mrs. Moore's Flower Shop and Greenhouse"
from 1929 until the late 1950s.
I would not be surprised if your Ellen Peeler's grave were to be found in the West Eden Cemetery, near Cypress in Johnson County Illinois. This cemetery has been very well kept and most of the stones are quite readable. Jacob Calvin Peeler, Nancy Peeler, many of their children and a couple of other Peeler lines are all buried there.
The small Methodist Church at West Eden has a "roll of honor" of veterans from WWI and WWII. These lists are filled with Peelers!
Hope this information helps!