There is a Boree cemetery in Clay County, as listed in Elizabeth Spencer's book "They Are Here," a volume of all the cemeteries in Clay County. She states that it is on Saunder's Farm and gives the plat location as Range 25E, Township 6S, Section 31. She also says it is about 100 feet square and is inside Foremost Dairies' boundaries (1973). She states that there are 16 graves marked with wooden stakes.
The Borees she lists are:
Nenia Boree, Nov 1893 to 7 July 1907 Samuel Boree, 19 April 1849 to 19 February 1903 Polly Florence Boree, 2 June 1864 to 18 December 1918.