Kirby; Crossing 1860 census data to Howard county township maps of era leads me to this entry which is best guess at this stage for Turner farm.
Name: Ephraim Turner
Age: 63
Birth Year: abt 1797
Gender: Male
Race: White
Birth Place: Kentucky
Home in 1860: Moniteau, Howard, Missouri
Post Office: Rocheport
Dwelling Number: 363
Family Number: 352
Occupation: Farmer
Real Estate Value: 4000
Personal Estate Value: 2840
Household Members Age
Ephraim Turner 63
Sallie Turner
52
Ephraim Turner
22
Levina Turner
18
Susan Turner
16
Andrew J Turner
14
Gilead R Turner
12
Ephraim was a slave owner on 1860 slave schedule. His find a grave listing has him buried in Shaw cemetery just off 240 in Davisdale conservation area so I think this is the one to focus on.
https://www.findagrave.com/memorial/61256322/ephram-turner
We are lucky given his age he does have a land grant that matches the cemetery neighborhood. It is here and plots nicely with what we know of the incident.
https://glorecords.blm.gov/details/patent/default.aspx?accession=MO0470__.288&docClass=STA&sid=jci5uflc.1pl
This rough country even today!