Question: Who was in charge of Alan Dressler's city of birth?

full_context: Document 1: Samuel W. Alderson: Alderson was born in Cleveland, Ohio but was raised in southern California as a toddler where his Romanian-immigrant father ran a custom sheet-metal and sign shop. He graduated from high school at the age of 15 and went on to intermittently study at Reed College, Caltech, Columbia and UC Berkeley. He frequently interrupted his education to help out with the family sheet-metal business. He completed his formal education at the University of California, Berkeley under the tutelage of J. Robert Oppenheimer and Ernest O. Lawrence, but did not complete his doctoral dissertation.
Document 2: Houston: The city of Houston has a strong mayoral form of municipal government. Houston is a home rule city and all municipal elections in the state of Texas are nonpartisan. The City's elected officials are the mayor, city controller and 16 members of the Houston City Council. The current mayor of Houston is Sylvester Turner, a Democrat elected on a nonpartisan ballot. Houston's mayor serves as the city's chief administrator, executive officer, and official representative, and is responsible for the general management of the city and for seeing that all laws and ordinances are enforced.
Document 3: Olin Chaddock Wilson: Born in San Francisco, CA as the son of a lawyer, Wilson showed an interest in physics at an early age. He studied astronomy and physics at the University of California, Berkeley and wrote his first scientific paper in 1932 on the subject of the speed of light. He received his PhD from the California Institute of Technology in 1934.
Document 4: Oklahoma City: The City of Oklahoma City has operated under a council-manager form of city government since 1927. Mick Cornett serves as Mayor, having first been elected in 2004, and re-elected in 2006, 2010, and 2014. Eight councilpersons represent each of the eight wards of Oklahoma City. City Manager Jim Couch was appointed in late 2000. Couch previously served as assistant city manager, Metropolitan Area Projects Plan (MAPS) director and utilities director prior to his service as city manager.
Document 5: Alan Dressler: Dressler was born in Cincinnati, Ohio, graduated from Walnut Hills High School in 1966, and received his bachelor's degree in physics in 1970 from the University of California, Berkeley and his doctorate in astronomy in 1976 from the University of California, Santa Cruz. His primary professional interests lie in cosmology, birth and evolution of galaxies, astronomical instrumentation, and extragalactic astronomy.
Document 6: Astronomer: The number of professional astronomers in the United States is actually quite small. The American Astronomical Society, which is the major organization of professional astronomers in North America, has approximately 7,000 members. This number includes scientists from other fields such as physics, geology, and engineering, whose research interests are closely related to astronomy. The International Astronomical Union comprises almost 10,145 members from 70 different countries who are involved in astronomical research at the Ph. D. level and beyond.
Document 7: 2017 Cincinnati mayoral election: The 2017 Cincinnati mayoral election took place on November 7, 2017, to elect the Mayor of Cincinnati, Ohio. The election was officially nonpartisan, with the top two candidates from the May 2 primary election advancing to the general election, regardless of party. Incumbent Democratic Mayor John Cranley won re-election to a second term.
Document 8: Ann Arbor, Michigan: Ann Arbor has a council-manager form of government. The City Council has 11 voting members: the mayor and 10 city council members. The mayor and city council members serve two-year terms: the mayor is elected every even-numbered year, while half of the city council members are up for election annually (five in even-numbered and five in odd-numbered years). Two council members are elected from each of the city's five wards. The mayor is elected citywide. The mayor is the presiding officer of the City Council and has the power to appoint all Council committee members as well as board and commission members, with the approval of the City Council. The current mayor of Ann Arbor is Christopher Taylor, a Democrat who was elected as mayor in 2014. Day-to-day city operations are managed by a city administrator chosen by the city council.
Document 9: Auckland: In October 2010, Manukau City mayor Len Brown was elected mayor of the amalgamated Auckland Council. He was re-elected for a second term in October 2013. Brown did not stand for re-election in the 2016 mayoral election, and was succeeded by successful candidate Phil Goff in October 2016. Twenty councillors make up the remainder of the Auckland Council governing body, elected from thirteen electoral wards.
Document 10: Southampton: The city has a Mayor and is one of the 16 cities and towns in England and Wales to have a ceremonial sheriff who acts as a deputy for the Mayor. The current and 793rd Mayor of Southampton is Linda Norris. Catherine McEwing is the current and 578th sherriff. The town crier from 2004 until his death in 2014 was John Melody, who acted as master of ceremonies in the city and who possessed a cry of 104 decibels.
Document 11: Steven J. Dick: Steven J. Dick received a Bachelor of Science in astrophysics from Indiana University in 1971. In 1977, he earned a Master of Arts and a Ph.D. in the history and philosophy of science. For 24 years, Dick worked as an astronomer and historian of science for United States Naval Observatory in Washington, D.C., including three years at the Naval Observatory's Southern Hemisphere station in New Zealand. There he was part of a team using transit telescopes and astrographs to chart the northern and southern skies. During this time, he also wrote the history of the Observatory, the first national observatory of the United States, published as "Sky and Ocean Joined: The U. S. Naval Observatory, 1830-2000".
Document 12: New York City Council: The head of the City Council is called the Speaker. The current Speaker is Corey Johnson, a Democrat. The Speaker sets the agenda and presides at meetings of the City Council. Proposed legislation is submitted through the Speaker's Office. There are 47 Democratic council members led by Majority Leader Jimmy Van Bramer. The three Republican council members are led by Minority Leader Steven Matteo. There is one vacancy.
Document 13: Brosl Hasslacher: Brosl Hasslacher obtained a bachelor's in physics from Harvard University in 1962. He did his Ph.D. with D.Z. Freeman and C.N. Yang at the State University of New York at Stony Brook. After having several postdoctoral and research positions at Institute for Advanced Study in Princeton, New Jersey, Caltech, ENS in Paris, and CERN, he settled for more than twenty years at the Theoretical Division of the Los Alamos National Laboratory. There he was involved in theoretical, experimental, and numerical work in theoretical physics, high-energy physics, nonlinear dynamics, fluid dynamics, nanotechnology, and robotics.
Document 14: Cincinnati: The present Mayor of Cincinnati is John Cranley. The nine-member city council is composed of Vice Mayor Christopher Smitherman and Councilmembers Tamaya Dennard (President Pro-Tem), David Mann, Amy Murray, Chris Seelbach, P.G. Sittenfeld, Greg Landsman, Jeff Pastor, and Wendell Young. The city manager is Harry Black, and the manager maintains two assistant city managers.
Document 15: Richard D. Alexander: Alexander obtained an associate of arts degree from Blackburn College (Carlinville, Illinois) in 1948, a bachelor of science in education (biology) and a PhD from Ohio State University in 1956. He joined the University of Michigan faculty in 1957. He was the Donald Ward Tinkle Professor of
ground_truth: John Cranley
sub_queries: Alan Dressler >> place of birth Answer: Cincinnati
Who was in charge of Cincinnati ? Answer: John Cranley