Question: Alf Ellison was the chairman of operations at what farm implement maker in the United Kingdom?

Context paragraphs:
Alone Against Tomorrow: Alone Against Tomorrow: Stories of Alienation in Speculative Fiction is a collection of short stories by American writer Harlan Ellison.  Published in the United States in 1971, it as a ten-year retrospective of Ellison's short stories.  It was later published in the United Kingdom in two volumes as All the Sounds of Fear in 1973 and The Time of the Eye in 1974 (the 1974 volume only containing a new introduction).  All of the stories in this collection center around isolation and alienation, and were selected from previous short story collections to fit this theme.

Sandwich–Marseilles Manufacturing Building: The Sandwich–Marseilles Manufacturing Building, also known as the Dwarfies/Breeders Supply Building, is a historic building located in Council Bluffs, Iowa, United States.  This building was built by the Sandwich Manufacturing Company and the Marseilles Manufacturing Company in what is known as the Implement District, an industrial area south of the central business district that was home to farm implement manufacturers.  The two-story section on the north side was completed in 1883, and the single-story addition on the south side was completed sometime between 1889 and 1891.  Marseilles then occupied the addition while Sandwich remained in the original building.  There was a shift from agricultural implements to food processing as the area's business interests began to diversify.  Dwarfies Corporation, a cereal manufacturer, took over the building in 1929.  It is the only remaining building left in the city to illustrate this shift.  The building was damaged in a fire in 1947.  Dwarfies rebuilt this building and then built a new factory in 1949 along U.S. Route 6.  Breeders Supply Company, an international mail order business for breeding supplies, moved into this building the following year.  They used it as a warehouse for ten years.  The building was listed on the National Register of Historic Places in 2014.

Commission v United Kingdom: Commission v United Kingdom (or Commission of the European Communities v United Kingdom of Great Britain and Northern Ireland) refers to several different cases heard by the European Court of Justice, which the European Commission brought against the United Kingdom for infringing European Union law.  This includes breach of the Treaty on the Functioning of the European Union (TFEU), or a failure to implement European Union Directives:

Sheyenne, North Dakota: Sheyenne is a city in Eddy County, North Dakota, United States.  The population was 204 at the 2010 census.  Sheyenne was founded in 1883.  Located in the city is a U.S. post office, a senior citizens' center, and a fire department.  A community center and the Log Cabin Museum are located on Main Street (U.S. Route 281).  Businesses in the city include a farm implement dealer, a gas station, a hair salon, a taxidermy shop, Open Season Lodge & Event Center, and a bar.  On the east end of town there is a park with campsites located on Warsing Dam.  Sheyenne is also home to two Lutheran churches: Grace Lutheran and First Lutheran.

Planter (farm implement): A planter is a farm implement, usually towed behind a tractor, that sows (plants) seeds in rows throughout a field.  It is connected to the tractor with a drawbar or a three-point hitch.  Planters lay the seeds down in precise manner along rows.  Planters vary greatly in size, from 1 row to 48, with the biggest in the world being the 48-row John Deere DB120.  Such larger and newer planters comprise multiple modules called row units.  The row units are spaced evenly along the planter at intervals that vary widely by crop and locale.  The most common row spacing in the United States today is 30 inches.

John Christian and Bertha Landrock Reichert House: John Christian and Bertha Landrock Reichert House, also known as the Wineert-Gelm-Victorian House, is a historic residence located in Tipton, Iowa, United States.  J.C. Reichert was a native of Bavaria who immigrated to Ohio in 1837 and moved to Tipton in 1855.  He and his brother, John Henry, were carpenters.  They became contractors and built numerous buildings in the area.  They expanded their business by adding a lumberyard, before they opened a hardware and farm implement business.  Reichert also served as a director of the Cedar County State Bank.  He hired New York City architect Samuel B. Reed to design his home.  It is a rare example of the Stick style in Iowa.

Blackstone &amp; Co: Blackstone & Co. was a farm implement maker at Stamford, Lincolnshire, United Kingdom.

A. T. Averill House: The A. T. Averill House is a historic building located in Cedar Rapids, Iowa, United States.  Local architects Sidney Smith and W.A. Fulkerson designed this 2½-story, brick Late Victorian home.  It was completed in 1886 for farm implement dealer Arthur Tappan Averill.  This is a more restrained version of the High Victorian style.  The house features a truncated hip roof, a 2½-story polygonal bay, and a rectangular tower set on the diagonal.  The carriage house/barn behind the house is of a similar design, but older.  The house was listed on the National Register of Historic Places in 1978.

Alf Ellison: Alfred Owen Ellison (1 January 1903 – 12 June 1987), often referred to in print as A.O. Ellison and known colloquially as Alf or A.O., was an Australian solicitor, company director, racehorse owner and breeder.  For over forty years he was the owner of Baramul Stud.  Ellison served as chairman of the Australian operations of Mutual Acceptance Ltd (now Standard Chartered) and Lister Blackstone.  He was President of the Bloodhorse Breeders' Association of N.S.W.

Pioneer Implement Company: The Pioneer Implement Company, also known as the International Harvester Transfer House, is a historic building located in Council Bluffs, Iowa, United States.  Eli Shugart, Ferdinand Weis and F.R. Davis formed Pioneer Implement Company in 1893, and they built the four-story Late Victorian section of the building the same year.  This was during a period of growth in the city's "Implement District," which is located to the south of the central business district.  What made this company standout from the others in the district is that it was locally owned and operated agricultural implement business, rather than one owned by a factory from the east.  The company went out of business in 1915 and the building was taken over by International Harvester, which owned the building next door.  They added the single story brick addition to the south in 1927.  When IH closed their Council Bluffs operation in 1964 they were the only farm implement that was still in business in the Implement District.  The building was occupied by various businesses after that, including United Parcel Service.  Artspace, Inc. acquired the building and converted it into live/work spaces for artists.  The building was listed on the National Register of Historic Places in 2008.

Supporting paragraphs: Alf Ellison Blackstone &amp; Co
Answer: Blackstone & Co.