That Brand Book link you were provided is of current, recently expired or available. The Nebraska Brand Committee did not come into existence until 1941. It is doubtful that symbol would be found. Most Brands do not overlap as this one does. I'd first suggest it was a cemetery symbol; however, because of the names involved, it might more have been a business symbol. It "might" have been under a copyright. But, there may have only been a "family" connection within the cemetery.
Our family had a brand that was established in the State of Washington and was listed in Brand books, circa 1950-1970; however, that brand is no longer identified...even though we still own the branding iron (But never used it...)
I'd suggest you contact the Nebraska Brand Committee and ask about brands established in early 1900's/timeframe:
PO Box I, Alliance, NE 69301, 308-763-2930. They might have information about "historic" brands.
I also found the attached photo, which you also have that further explains the monument.
This indicates Eli Johnson, age 25, of Douglas Co, born in New York, Father Eli Johnson, mohter Tina Freeman, married Sarah A. Elston, age 18, of Douglas County, father William Elston, mother Elizabeth Henry, on 13 Dec 1877, witnesses George Campbell and Milla Weston, both of Waterloo:http://books.google.com/books?id=LmwdORsX7SsC&pg=PA76&am...
This record indicates Eli Johnson was a breeder of Registered Herefords (Being a youth 4-H and breeder of Herefords...a fine occupation). A Hereford is a brown/white faced cattle, originally from Herefordshire, England. The Polled (non-horned Hereford) is mostly found today.http://books.google.com/books?id=0RNJAAAAYAAJ&pg=RA8-PA5...
-Volume 55, 1920
The 1905 Superior Court record of Nebraska shows what appears to be a contested probate case in Douglas County for the estate of Eli Johnson, Eli Johnson Jr, being deceased. http://books.google.com/books?id=mC4tAQAAMAAJ&pg=PA305&a...
--This to me indicates Eli Johnson died circa 1905 and his estate was contested. However, there is no connection to the Reeves found in this record.
The Bureau of Land Management has a database of land patentshttp://www.glorecords.blm.gov/search/default.aspx#searchTabI...
issued under the Homestead Act and other Congressional Land Acts:
It shows Eli Johnson and Edward F. Owen obtained 160 acres of land in Sarpy County on 5/1/1860, located in Township 14 N, Range 10 E, Section 14, the East half of the South East Quarter of Section 14; and the East half of the North East Quarter of Section 23, all in Sarpy County. The Find-a-grave identified Eli Johnson was in Sarpy County in the 1860 Census. This particular patent was issued under the Act of 10 Stat. 701, March 3, 1855, The Scrip Warrant Act of 1855. Military warrant.
--An Eli F. Johnson obtained land on 3/12/1896 in Box Butte County. I did not further research this person
It shows a land patent of 160 acres in Douglas County was issued on 5/1/1860 to Preston Reeves, William E. Ide, and James Smith. The land was in Township 15 North, Range 13 East, Section 16, the South East Quarter of Section 16. This particular patent was issued under the Act of 10 Stat. 701, March 3, 1855, The Scrip Warrant Act of 1855. Military warrant.
Since the Douglas County has the "connection," I will address that location.