Question: Who was the sheriff of a ghost town in Beaverhead County, Montana?

full_context: Document 1: Bannock Pass: Bannock Pass is a high mountain pass in the Beaverhead Mountains, part of the Bitterroot Range in the Rocky Mountains. The pass lies on the Montana-Idaho border on the Continental Divide, at an elevation of 7684 ft (2342 m) above sea level.
Document 2: Granite, Montana: Granite is a ghost town in Granite County, Montana, United States, east of the town of Philipsburg. Granite thrived as a silver mining town in the 1890s, but is now completely deserted. The state of Montana maintains the mine superintendent's house and the ruins of the union hall as Granite Ghost Town State Park.
Document 3: Osage Indian murders: The Osage Indian murders were a series of murders of Osage people in Osage County, Oklahoma in the early 1920s; newspapers described the increasing number of unsolved murders as the "Reign of Terror". Estimates are that 60 or more wealthy, full-blood Osage native Americans were killed from 1921 to 1925. The murders appear to have been committed by people intent on taking over the great wealth of the Osage, whose land was producing valuable oil, and who each had headrights that earned lucrative annual royalties. Investigation by law enforcement, including the predecessor to the FBI, also revealed extensive corruption among local officials involved in the Osage guardian program. Most of the murders were never prosecuted, but some men were convicted and sentenced.
Document 4: Bannack, Montana: Bannack is a ghost town in Beaverhead County, Montana, United States, located on Grasshopper Creek, approximately 11 mi upstream from where Grasshopper Creek joins with the Beaverhead River south of Dillon. Founded in 1862, the town contemporarily operates as a National Historic Landmark and is managed by the state of Montana as Bannack State Park.
Document 5: Barrow Gang: The Barrow Gang was an American criminal organization active between 1932 and 1934. They were well known outlaws, robbers, and criminals who as a gang traveled the Central United States during the Great Depression. Their exploits were known nationwide. They captured the attention of the American press and its readership during what is sometimes referred to as the "public enemy era." Though the gang was notorious for the bank robberies they committed, they preferred to rob small stores or gas stations over banks. The gang was believed to have killed at least nine police officers, among several other murders.
Document 6: Innocents (gang): The Innocents were an alleged gang of outlaw road agents in Montana Territory who operated during the gold rush of the 1860s, preying on shipments and travelers carrying gold from Virginia City, Montana. According to the early chronicler Thomas Dimsdale, the gang attempted to steal gold while it was being transported; they killed many travelers who resisted. Sheriff Henry Plummer of Bannack, Montana was accused of leading the group, and was executed by a group of vigilantes from Virginia City in January 1864, along with several other alleged gang members.
Document 7: List of Old West gunfighters: This is a list of Old West gunfighters, referring to outlaws or lawmen, of the American frontier who gained fame or notoriety during the American Wild West or Old West. The term "gunslinger" is a modern, 20th-century invention, often used in cinema or other media to refer to men in the American Old West who had gained a reputation as being dangerous with a gun. A gunfighter may or may not be an outlaw or a lawman. An outlaw had usually been convicted of a crime, such as Black Bart, but may have only gained a reputation as operating outside the law, such as Ike Clanton. Some of those listed may have also served in law enforcement, like Marshal Burt Alvord who subsequently became an outlaw, and some outlaws like Johnny Ringo were deputized at one time or another. Some of the gunfighters listed included professional scouts, businessmen, and even doctors.
Document 8: Hecla, Montana: Hecla was a town in Beaverhead County, Montana. It has been designated as a ghost town with only a few ruined buildings remaining. It was notable at one time as the home of Blanche Lamont, who taught at Hecla's one-room schoolhouse. Lamont would become the first of two murder victims of Theodore Durrant. Margaret Brown also lived there for a time.
Document 9: Jesse James: Jesse Woodson James (September 5, 1847April 3, 1882) was an American outlaw, bank and train robber, guerrilla, and leader of the James–Younger Gang. Raised in the "Little Dixie" area of western Missouri, James and his family maintained strong Southern sympathies. He and his brother Frank James joined pro-Confederate guerrillas known as "bushwhackers" operating in Missouri and Kansas during the American Civil War. As followers of William Quantrill and "Bloody Bill" Anderson, they were accused of participating in atrocities against Union soldiers and civilian abolitionists, including the Centralia Massacre in 1864.
Document 10: Alder Gulch: Alder Gulch (alternatively called Alder Creek) is a place in the Ruby River valley, in the U.S. state of Montana, where gold was discovered on May 26, 1863 by William Fairweather and a group of men including Barney Hughes, Thomas Cover, Henry Rodgers, Henry Edgar and Bill Sweeney who were returning to the gold fields of Grasshopper Creek, Bannack, Montana. They were on their way to Yellowstone Country from Bannack but were waylaid by a band of Crow Indians. After being ordered out of Crow hunting grounds, they crossed the East Slope of the Tobacco Root Mountains and camped for the night in Elk Park, where William "Bill" Fairweather and Henry Edgar discovered gold, while the remaining party was out hunting for meat. Agreeing to keep the new discovery quiet the group of miners returned to the town of Bannack for supplies. Unfortunately word leaked out about the new strike, and miners followed the Fairweather party out of town. The party stopped at the Point of Rocks, part way between Bannack and Alder Gulch, and established the Fairweather Mining District in a miners meeting. It was agreed that the discoverers were entitled to two claims and first choice. The first stampede of miners reached Alder Gulch June 6, 1863 and the population swelled to over 10,000 in less than 3 months. The "Fourteen Mile City" ran the length of the gulch, and included the towns of Junction City, Adobe Town, Nevada City, Central City, Virginia City, Montana, Bear Town, Highland, Pine Grove French Town, Hungry Hollow, and Summit. Upon arrival the miners lived in brush wickiups, dugouts and under overhanging rocks until cabins could be built. The first structure built in Virginia City was the Mechanical Bakery. Virginia City, and Nevada City were the centers of commerce during the height of the Alder Gulch gold rush. In the first year the area had over 10,000 people living there. Montana Territory was established in May 1864, and the first territorial capital was Bannock. The capital then moved to Virginia City, where it remained until 1875. The Alder Gulch diggings were the richest gold placer deposits ever discovered, and in three years $30,000,000 was taken from them, with $10,000,000 taken out in the first year. Nowadays, except during summertime, the streets of Virginia City are usually quiet and relatively few visitors find their way to the 16 ton granite monument that marks the spot of that incredible discovery of May 26, 1863.
Document 11: Indiana White Caps: White caps were secret terrorist bands operating in southern Indiana in the late 19th century. They became common in the state following the American Civil War and lasted until the turn of the 20th century. They beat or killed numerous victims. They often claimed the victims were either criminals or suspected criminals, but often the victims were simply people of whom the whitecappers disapproved. White Caps were especially active in Crawford and neighboring counties in the late 1880s, according to a report by Attorney General Louis T. Michener. Blacks and others they disliked were forced out; victims both male and female were severely whipped or whipped. Several members of the Reno Gang were lynched in 1868, causing an international incident. Some of the members had been extradited to the United States from Canada and were supposed to be under federal protection. Lynchings continued against other criminals, but when two possibly innocent men were killed in Corydon in 1889, Indiana responded by cracking down on the white cap vigilante groups beginning in the administration of Isaac P. Gray.
Document 12: Confederate Gulch and Diamond City: Confederate Gulch is a steeply incised valley on the west facing slopes of the Big Belt Mountains in the U.S. state of Montana. Its small stream drains westward into Canyon Ferry Lake, on the upper Missouri River Valley near present-day Townsend, Montana. In 1864 Confederate soldiers on parole from the American Civil War made a minor gold discovery in the gulch, but in 1865 the discovery of the sensationally rich Montana Bar—one of the richest placer strikes per acre ever made—led to other rich gold strikes up and down the gulch, and touched off a frantic boom period of placer gold mining that extended through 1869. From 1866 to 1869 the gulch equaled or outstripped all other Montana Territory mining camps in gold production, producing an estimated $19 to $30 million in gold—late 1860s money. For a time, the gulch became the largest community in Montana—in 1866 Montana had a total population of 28,000, and of these, about 10,000 (35%) were working in Confederate Gulch. The main community was Diamond City , and while gold production was at its height, Diamond City roared along both night and day. During its heyday, Diamond City was the county seat of Montana's Meagher County, although today the area has become part of Broadwater County. In their frantic efforts to get at more gold, the miners built ditches and flumes that extended for miles, and employed high pressure hydraulic mining methods which washed down whole hillsides and ate up the gulch floor. The hydraulic mining process stripped the gulch and left huge spoil banks—hydraulic mining even consumed the site of Diamond City, which had to be moved to a new location. Then the gold ran out, the boom was over and the population simply picked up and left. In 1870 there were only 255 people left and a year later only about 60. Today hardly a trace remains of Diamond City or the other gulch communities. The gulch is quiet and empty, with only an occasional summer prospector, or a rare traveler using the unimproved road that still winds up the gulch from the Missouri Valley and crosses the top of the Big Belts on its way down to the Smith River Valley. Diamond City, Confederate Gulch and the Montana Bar were spectacular examples of the flash-in-the pan Montana placer gold mining camps, but what a flash.
Document 13: Dryhead Country: Dryhead Country is a region in Carbon County and Big Horn County in southern Montana between Bighorn Canyon and the Pryor Mountains. The locale was named after the piles of dry bison skulls that accumulated at the base of a local buffalo jump. The Dryhead region starts near the Wyoming border in Bighorn Canyon National Recreation Area and extends northward into the Crow Indian Reservation. Dryhead Creek drains a portion of the area, falling eastwards into Bighorn Canyon. The semi-arid basin is one of the most remote areas in Montana. The area is sparsely populated with isolated ranches.
Document 14: Montana Trail: The Montana Trail was a wagon road that served gold rush towns such as Bannack, Virginia City and later Helena, Montana during the Montana gold rush era of the 1860s and 1870s. Miners and settlers all travelled the trail to try to find better lives in Montana. The trail was also utilized for freighting and shipping supplies and food goods to Montana from Utah. Bandits and Native Americans, as well as the weather, were major risks to travelling on the Montana Trail.
Document 15: Clark massacre: In August, 1851, a band of Shoshoni Indians led by Cho Cho Co (also called Has No Horse) reportedly attacked a wagon train led by Thomas Clark on the Oregon Trail near where the Raft River joins the Snake River in present-day Idaho. Afterward, reports held that the Indians' primary objective was to steal horses from Thomas Clark's wagon train party, and that the Indians killed Clark's mother and brother and another man traveling with them during the horse robbery.
ground_truth: Henry Plummer