Question: William S. Dietrich II took over and expanded a business located in what state?

Context paragraphs:
AIB College of Business: AIB College of Business was an accredited, independent, nonprofit, baccalaureate college of business located in Des Moines, Iowa, in the United States.  The college closed on June 30, 2016, after 95 years and gifted its property to the State of Iowa, Board of Regents.  The campus is now operated by the University of Iowa and has been named the Iowa Center of Higher Education.  Former students and graduates of American Institute of Business, aka AIB College of Business needing a copy of their AIB transcripts may obtain copies by contacting the Office of the Registrar at the University of Iowa, phone: 319-335-0229.  Email: registrar-transcripts@uiowa.edu.  Former students desiring to obtain a copy of their student counseling records maintained by AIB College of Business (during the period from May 30, 2009, through May 30, 2016), should contact University Counseling Services at the University of Iowa, phone: 319-335-7294, or Email: ucs@uiowa.edu.

Pioneer Oil Company Filling Station: The Pioneer Oil Company Filling Station is a historic building located in Grinnell, Iowa, United States.  The northern half of the building dates back to the 1920s when it was associated with a local farmers' cooperative.  One of the services they provided was selling gasoline.  The building was expanded in 1931 into a more traditional filling station as selling fuel became a more prominent part of the operation.  The building attained its present appearance in 1937 when the service bays and the decorative brick veneer were added.  It retained its original name, "Pioneer Oil Company," throughout its time as a service station even though it became affiliated with Mobilgas in 1936.  That affiliation ended in 1962.  During World War II it became a tire inspection center under the wartime tire rationing program.  The service station ceased operations around 2004.  The building was re-purposed into the Mobil Wash and Wax, an automotive detailing business located in the service bays, and the Candyland Cafe in the northern portion of the building.  It was listed on the National Register of Historic Places in 2013.

Dietrich III, Count of Cleves: Dietrich III was Count of Cleves from 1172 through 1188.  He was the son of Dietrich II, Count of Cleves, and Adelaide, daughter of Gebhard III of Sulzbach.

History of Radhanpur: Radhanpur is a town and a municipality in Patan district in the Indian state of Gujarat.  Radhanpur belonged to the Vaghelas in early years and later it was held as a fief under the Gujarat Sultanate by Fateh Khan Baloch.  During Mughal period, the descendants of Babi dynasty were appointed as the governor of Radhanpur and other villages of North Gujarat.  After decline of Mughal, they became free and established themselves as independent rulers.  In 1743, Babi descendant Jawan Mard Khan II took over viceroyalty of Ahmedabad and controlled several villages in North Gujarat.  He was defeated by Maratha Gaekwads in 1753 at Ahmedabad and Gaekwads agreed to his demand of control of villages in North Gujarat headquartered at Radhanpur State.  His descendants lost some of these villages to Gaekwads subsequently.  In 1813, Sher Khan made a treaty with the Gaekwar and British and became British protectorate.  His descendants ruled the state until independence of India in 1947.

Münster Diocesan Feud: The Münster Diocesan Feud (German: "Münsterische Stiftsfehde" ), or simply Münster Feud, was a dispute that took place between 1450 and 1457 over the appointment to the bishop's throne in Münster, and hence the rule of the diocese.  The opposing candidates were Walram of Moers and Eric of Hoya.  They were supported by their families with Count John of Hoya and Archbishop Dietrich II of Moers at their respective heads.  In addition, there were also external allies.  Within the diocese the "Stände", namely the cathedral chapter and the town of Münster, played an independent role at times.  In the end neither candidate was able to succeed to the office.

Gertrude of Brunswick: Gertrud of Brunswick (German: "Gertrud von Braunschweig" ;  1060 – 9 December 1117), was Countess of Katlenburg by marriage to Dietrich II, Count of Katlenburg, Margravine of Frisia by marriage to Henry, Margrave of Frisia, and Margravine of Meissen by marriage to margrave Henry I.  She served as regent of the County of Katlenburg during the minority of her son Dietrich III of Katlenburg, and as regent of the County of Northeim during the minority of her son Otto III of Northeim.  She was also one of the leaders of the insurrections against Emperor Henry IV and his son Henry V.

William S. Dietrich II: William S. Dietrich II (May 13, 1938 – October 6, 2011) was a successful industrialist who took over and expanded Dietrich Industries, a steel framing manufacturer which he eventually sold to Worthington Industries.  Late in life, he made two of the largest charitable contributions in higher education history, to the University of Pittsburgh and Carnegie Mellon University.

Rosecroft Raceway: Rosecroft Raceway, nicknamed the "Raceway by the Beltway" for being close to Interstate 495, is a harness racing track in Fort Washington, Maryland.  It first opened in 1949 and was owned by William E. Miller, a horse trainer and breeder.  Rosecroft quickly became Prince George's County's political and social center, drawing thousands of people there each racing day.  In the early 1950s, average attendance was more than 7,000 per day.  After Miller died in 1954, his son John owned Rosecroft until his death in 1969.  Rosecroft hosted memorial stake races annually for both William and John until 1995.  Following the death of John Miller, Earle Brown controlled operations until he moved to a different position in 1980; William E. Miller II took over following Brown.

Dietrich Man: Dietrich Man, known as Dietrich II, was Bishop of Havelberg from 1370 to 1385.

Worthington Industries: Worthington Industries is a global diversified metals manufacturing company with 2015 fiscal year sales of $3.38 billion.  The Columbus, Ohio based company is a steel processor and manufacturer of pressure cylinder, such as propane, oxygen and helium tanks, hand torches, refrigerant and industrial cylinders, camping cylinders, exploration, recovery and production products for global energy markets; scuba tanks, and compressed natural gas storage cylinders; custom-engineered open and enclosed cabs and operator stations for heavy mobile equipment; framing systems for mid-rise buildings; steel pallets and racks for shipping.  In addition to its three primary business units (steel processing, pressure cylinders and engineered cabs), the company’s approximately 10 joint ventures also focus on metals-related markets.

Supporting paragraphs: William S. Dietrich II Worthington Industries
Answer: Ohio