Hon. Jean Gervais Protais Blanchet (February 10, 1843 – December 11, 1908) was the second eldest of eleven children of Cyprien Blanchet, notary public of St. Francois, Beauce and his wife, Marie Gosselin.
 He was a descendant of one of Quebec’s oldest families which had settled in Quebec in 1667.
 Born in St. Gervais, he was educated at Nicolet College.
 He entered Laval University to study law and was called to the Bar of Lower Canada in 1863.
 He worked with the firm of Henri-Elzear Taschereau.
 He was defeated in his first try at politics losing the Beauce seat in the federal election of 1872.
 In 1872-73, he was a partner in the firm of Blanchet & Pentland.
 He was created a Q.C. by the government of Quebec in 1876 and had the same honour conferred on him by the Canadian government (Marquis of Lorne) in 1880.
 He was later a partner in the firm of Blanchet, Amyot & Pelletier and then with Blanchet, Drouin & Dionne.
 He was elected batonnier of the Quebec section of the Bar in 1889 and batonnier-general of the province in
Monroeville (also, Munroeville), named for its founder U. P. Monroe, was the county seat of Colusa County from 1851 to 1853.
 It was located 15 mi north of Butte City, near the mouth of Stony Creek in northeastern Glenn County, at an elevation of 128 feet (39 m).
 The people of the community of Colusa fought for and eventually won the right to become the County Seat in 1853.
 A post office operated at Monroeville from 1853 to 1862.
 The area containing Monroeville was eventually absorbed into Glenn County when that county was formed in 1891.
François-Jean Pelletier (November 17, 1863 – December 15, 1945) was a merchant and political figure in Quebec.
 He represented Matane in the Canadian House of Commons from 1917 to 1925 as a Liberal.
 Pelletier was elected to the Legislature of the State of Montana for Silver Bow County in 1899 and 1901.
Silver Bow County is a county in the State of Montana.
 As of the 2010 census, the population was 34,200.
 Its county seat is Butte.
 In 1977, the city and county governments consolidated to form the single entity of Butte-Silver Bow.
 Additionally, the town of Walkerville is a separate municipality from Butte and is within the county.
Arco is a city in Butte County, Idaho, United States.
 The population was 995 at the 2010 census.
 Arco is the county seat and largest city in Butte County.
Harding County is a county located in the U.S. state of South Dakota.
 As of the 2010 census, the population was 1,255, making it the second-least populous county in South Dakota.
 Its county seat is Buffalo.
 The county was established in 1881 and named in honor of J.A. Harding, who had been Speaker of the House of the Dakota Territory.
 It was merged for a few years with Butte County, under that county's name, but became separate again in 1909.
Alliance is a city in Box Butte County, in the northwestern part of the state of Nebraska, in the Great Plains region of the United States.
 Its population was 8,491 at the 2010 census.
 It is the county seat of Box Butte County.
Box Butte County is a county in the U.S. state of Nebraska.
 As of the 2010 census, the population was 11,308.
 Its county seat is Alliance.
 The county was formed in 1886.
 Box Butte is the name of a geological formation in the county's eastern part.
The McIntosh County Seat War was a dispute in Oklahoma over the location of the McIntosh County seat that took place between 1907 and 1909.
 Following a pair of elections that resulted in the town of Checotah being designated as the new county seat, the people of Eufaula refused to hand over the county records.
 As a result, a group of heavily armed men from Chectotah attempted to seize the records, but were forced to surrender during the gunbattle that ensued.
 One year later, after another close election, Eufaula became the permanent county seat.
Butte is a city in, and the county seat of Silver Bow County, Montana, United States.
 In 1977, the city and county governments consolidated to form the sole entity of Butte-Silver Bow.
 As of the 2010 census, Butte's population was approximately 34,200.
 Butte is Montana's fifth largest city.

Question: François-Jean Pelletier worked in politics in which place in which their county seat is Butte?
Answer: Silver Bow County