I believe that, immediately prior to their move to Beverly Hills, the Clampetts lived in northern Stone County, Arkansas.
In the first season of the show, we learned that the Clamplett home in the Ozarks was: (1) 40 miles from Oxford, Arkansas, (2) 8 miles from the nearest neighbor, and (3) in the hills. First we must decide what Pearl meant when she said the Clampett home was 40 miles from Oxford. I think that most likely she meant 40 miles driving distance. I drew a circle with a radius of 40 miles centered on Oxford on a map of Arkansas and Missouri. The area within that circle that best met the three criteria was northern Stone County. This area is sparsely populated and a home 8 miles from the nearest neighbor is certainly plausible. This area also has the hilliest terrain within this circle. Although this area is in the Ozark National Forest, there are numerous private landholdings within the national forest boundary. If Pearl meant 40 miles in a straight line, which I don’t think she did, then areas in extreme northeast Searcy County, Arkansas and extreme southeast Marion County, Arkansas might also be considered. Also within that circle in northern Baxter County, Arkansas and southern Ozark County, Missouri are some areas between the White River and North Fork River that are possible candidates for the Clampett home. However, these areas are more densely populated and is less hilly than northern Stone County. It is much less likely to find a place that would be 8 miles from the nearest neighbor in this region. Areas to the south, east, and north of Oxford are much flatter and densely populated and need no further evaluation. In the early 1960s there were still areas in rural Arkansas without telephone service. However, Oxford would not have had the closest telephone to northern Stone County. There certainly would have been telephone service in Calico Rock on the way to Oxford. Either the telephone in Oxford is the closest one that Pearl was aware of, or Pearl deliberately misled Mr. Brewster so she could ride with him all the way to Oxford in his car.
There are several conflicting geographical references that must be reconciled. Although Jed’s grandfather built the cabin that the Clampetts lived in immediately prior to the move to Beverly Hills, I think that Jed, Ellie Mae, and Granny had only lived there for about 8 years or less prior to the move. While nothing was ever directly said in the series indicating this, there was never anything said that precludes this. Prior to living there, it appears that the Clampetts lived in or near the Bug Tussle-Sibley Metroplex in Taney County, Missouri. Jed was said to be born and raised in Taney County, although he did spend some time in Cass County, Missouri as a young man where he was known as the lady killer of Cass County. Granny said that Sibley is “just a hoot and a holler” from Mincy. “A hoot and holler” is a shorter distance than “clean over to.” Mincy is an actual community in Taney County southeast of Branson near the White River. Granny said that the river road cuts off to Bug Tussle in Mincy. There is rail service in both Ripley and Bug Tussle and it is 18 rail miles between the two. This would put the Bug-Tussle-Sibley Metroplex west of Mincy on or near the White River Division of the Missouri Pacific Railroad (now the Missouri and Northern Arkansas Railroad) somewhere between Branson and the Arkansas state line. Perhaps the reason the Bug Tussle-Sibley Metroplex cannot be located on modern maps is that this is now the location of the new Branson Airport (not to be confused with the Springfield-Branson National Airport) which was opened in 2009. Ellie Mae may have been as young as 14 when she moved to Beverly Hills. Beauregard Short was the son of Luke Short, owner of Luke’s General Store in Sibley. Ellie Mae remembers throwing rocks at Beauregard when she was a little girl. This suggests that Ellie Mae lived in the Bug Tussle-Sibley Metroplex until she was at least about 6. The Possum Festival is held in Sibley and Granny claims to have ran for Possum Queen 47 times. Granny also claims to have entered a beauty contest in the Expo ’97 in Bug Tussle. This would have been in 1897. This suggests that Granny was born in the 1880s and moved to the Bug Tussle-Sibley Metroplex from Tennessee when she was a teenager or younger. The Clampetts were familiar with and had great respect for the mayor of Bug Tussle, Amos Hogg.
Let us consider what is meant by “back home.” I will start with my own personal experiences. I was born and grew up in City B in State A. As an adult, I moved from City B in state A to City C in State A where I married and raised a family. Then I moved to City S in State N but kept my home in City C. When I first moved to City S, if someone asked where was “back home” for me I would have described my specific house in City C. As time passed I would have just said City C and eventually said City C and City B. After a number of years I now consider the entire State A “back home.” Similarly, when the Clampetts first moved to Beverly Hills they considered “back home” to mean the cabin in the hills. Later in the series “back home” also meant Sibley and Bug Tussle as well and eventually included an even broader area including Silver Dollar City which is west of Branson. Note how Jed referred to Luke’s General Store as being over at Sibley in Season 2 but referred to Sibley as back home in season 4. Also note that when Jed saw Shorty Kelloms in Silver Dollar City that he said he hadn’t seen Shorty in 25 years.
In regards to Pearl and Jethro, they must have lived in or near Oxford immediately prior to the move. Pearl played the piano at the movie theater there. Towards the end of the series it is implied that Pearl was living near Silver Dollar City. This is not implausible, as she had a millionaire cousin who was generous with his money and he could have bought her a new house. Pearl probably lived in the Bug Tussle-Sibley Metroplex in the vicinity of her cousin Jed prior to living in Oxford because she recalls Jed’s father taking them to Eureka Springs to watch the movies. Pearl’s late husband was from Oxford. Her husband may have lived with her in the Bug-Tussle-Sibley Metroplex for a while as well. Recall how Jed told Jethro that they had to drive him “clean over to” Oxford to go to the same school as his late father. Elverna Bradshaw must have lived in Oxford as well before moving to Silver Dollar City later in the series.
I found it interesting that Jed once said that Granny was related on his late wife’s side of the family, the Moses family from Tennessee. Did he mean his late wife’s father and Granny’s husband was a Moses? As shown above, Granny must have moved to the Bug Tussle-Sibley Metroplex as a teenager or even sooner. Was she already married to a Moses when she moved? Would a married woman enter a beauty contest in 1897? It sounds more like he is saying that Granny is a descendant of the Moses family. Did Granny ever say that she was a widow? Could it be that Granny was a single mother and Jed’s wife was illegitimate? Someone please answer this for me. I do not want to have to watch all 274 episodes of the Beverly Hillbillies again.