Hi Mona, While searching for my Hardeman Co TN McKees on the various search engines and printing out different "leads" that I thought might connect I found the following:
A reference to your Margaret Katherine under: Lauderdale Co TN Deaths, Halls Funeral Home Margaret Katherine Scott, Widow, 1 Oct 1879-17June 1953 Buried Poplar Grove Father:W. A. McKee (listing was spelled as Mekee) Mother:_____________ Reagan
I found Andrew McKee 76 yrs12-21-1844/Oct 15 1921 Company I 5th Tenn Inf Found Andrew and Nancy Reagan McKee and family buried at Sorrell's Chapel Cemetery, see rootsweb.com/usgenweb/archives/tn/dyer/cemeteries/sorrell.txtor Rootsweb Home Page, down right column to USGENWEB Archives, to Tennessee to Dyer County and search for McKee.
I could not connect my Hardeman Co McKee to your McKee Family at Sorrell Cemetery but there may be a link there yet.
I have not seen anything in Dyer Co on Samuel.There is probably data there in the county but not yet transcribed for online use--keep looking over time as volunteers add new data.