Question: What is the minimum age to buy a handgun in the state where Glick-Sower House is located?

full_context: Document 1: Gun laws in Iowa: A Permit To Acquire (PTA), obtained from the sheriff of the county of the applicant's residence, is required when purchasing or otherwise acquiring a handgun, either from a dealer or from a private party. A Permit To Acquire shall be issued to qualified applicants aged 21 or older. The PTA becomes valid three days after the date of application, and is valid for one year. A PTA is not required when purchasing an antique handgun, defined as one made in or before 1898 and including post-1898 replicas of matchlock, flintlock, or percussion cap pistols.
Document 2: Wickfield Round Barn: The Wickfield Round Barn is a historic building located near Cantril in rural Van Buren County, Iowa, United States. Originally called Silvers Sale Pavilion, it was built in 1919 by Alva Hunt for $20,000. The true round barn measures in diameter. Frank Silvers, a successful hog breeder and businessman, operated the largest Hampshire hog farm in the world. The first floor had seating for 700 people. Silvers' business offices were also located on the first floor. The structure is constructed of clay tile and features an aerator. The two-pitch roof features eight dormers on the lower part and four dormers on the upper part of the roof. It has been listed on the National Register of Historic Places since 1986. There are no round barns in Iowa used as sale barns any longer, and this one is used for storage.
Document 3: Gun laws in Ohio: In April 2004, Ohio became the 46th state to legalize concealed carry and its statute went into effect. The law (Ohio Revised Code (O.R.C.) 2923.12, et seq.) allows persons 21 and older to receive a concealed handgun license provided that they receive a minimum of 8 hours of handgun training (6 hours of classroom instruction and 2 hours of range time) from a certified instructor, demonstrate competency with a handgun through written and shooting tests, pass a criminal background check, and meet certain residency requirements (non-residents who work in Ohio will be allowed to obtain licenses as of March 23, 2015).
Document 4: Gun laws in Washington: As a general rule, a person may legally open - carry in Washington state in any place it is legal to possess a loaded handgun, as long as it does not manifest ``an intent to intimidate another or (warrant) alarm for the safety of other persons. ''To open - carry a handgun in a vehicle (e.g, car, bus, etc...) a person must have a valid concealed pistol license. The county sheriff or city police chief shall issue a concealed pistol license to any applicant, age 21 or older, who meets certain requirements, including no felony convictions, no misdemeanor domestic violence convictions, and no outstanding warrants. Open carrying of firearms is not prohibited by law, although trouble with some law enforcement agencies has been encountered while open carrying in the past, most notably in a case in Ellensburg, Washington.
Document 5: George H. Gallup House: The George H. Gallup House built in 1901 is an historic octagonal house located at 703 South Chestnut Street in Jefferson, Iowa, United States. It was the birthplace and boyhood home of Dr. George Horace Gallup, the pioneer of public opinion polling. On July 18, 1985, it was listed on the National Register of Historic Places.
Document 6: Gerhardt Octagonal Pig House: The Gerhardt Octagonal Pig House near Gladstone, North Dakota, United States, was built in 1930. It was listed on the National Register of Historic Places in 1986.
Document 7: Gun laws in Tennessee: A license is required to carry a loaded handgun either openly or concealed. Such permits are issued through the Department of Safety to qualified residents 21 years or 18 years old if the applicant is active duty, reservist, guardsman, or honorably discharged from their branch of service, DD - 214 must mention 'pistol qualification' in order to be exempt from 8 hour safety course must have a valid military ID. The length of the term for the initial license is determined by the age of the applicant. If renewed properly and on time, the license is renewed every 5 years. Tennessee recognizes any valid, out - of - state permit for carrying a handgun as long as the permittee is not a resident of Tennessee. Nonresidents are not issued permits unless they are regularly employed in the state. Such persons are then required to obtain Tennessee permits even if they have home state permits unless their home state has entered into a reciprocity agreement with Tennessee. Permittees may carry handguns in most areas except civic centers, public recreation buildings and colleges. Businesses or landowners posting ``no carry ''signs may prohibit gun carry on any portion of their properties.
Document 8: Adolphus W. Brower House: The Adolphus W. Brower House, in Sycamore, Illinois, has been listed on the National Register of Historic Places since February 14, 1979. The home is located on Illinois Route 64 as it passes through the DeKalb County seat of Sycamore as DeKalb Avenue. The Italianate structure, constructed of stone and asphalt, was erected in 1876 by Sycamore merchant Adolphus W. Brower. It is also known as the George F. Beasley House.
Document 9: Gun laws in Indiana: Indiana is a ``shall issue ''state for the License To Carry a Handgun. A license to carry will be issued to individuals age 18 or older who meet a number of legal requirements. Currently both limited term and unlimited lifetime licenses are available.
Document 10: Isaac Glaspell House: The Isaac Glaspell House is a historic building located on the east side of Davenport, Iowa, United States. Isaac Glaspell was a local grocer in the 1870s and 1880s and had this Greek Revival house built during that time. It is a two-story structure that features a front gable, three bay façade, with a single bay side wing. The exterior is composed of brick with stone and wood trims. The house is a vernacular form of the Greek Revival style found in Davenport. The notable details on this house are the bracketed eaves and the flat arch window heads that are topped by keystone brick hoods. The house had at least one wrap-around porch porch that was believed to have been added around the turn of the 20th-century. It may have replaced an earlier porch, but it is no longer extant. The house sits on a raised lot. It has been listed on the National Register of Historic Places since 1983.
Document 11: Gun laws in Texas: The Texas handgun carry permit was previously called a ``Concealed Handgun License ''or CHL. This has changed on Jan 1. 2016 to LTC`` License To Carry'' and at the same time the laws changed to include ``Open Carry ''. Permits are issued on a non-discretionary (`` shall - issue'') basis to all eligible, qualified applicants. Texas has full reciprocity agreements with 30 states, not including Vermont (which is an ``unrestricted ''state and neither issues nor requires permits), most of these having some residency restrictions (the holder must either be a resident of Texas or a non-resident of the reciprocal state for the Texas license to be valid in that state). Texas recognizes an additional 11 states' concealed - carry permits unilaterally; those states do not recognize Texas' own permit as valid within their jurisdiction, usually due to some lesser requirement of the Texas permit compared to their own.
Document 12: Glick–Sower House: The Glick–Sower House, also known as the Susie Sower House, is located in Marshalltown, Iowa. The house was built in 1859 for Dr. George Glick and has been listed on the National Register of Historic Places since 1993. It is operated as a historic house museum by the Historical Society of Marshall County.
Document 13: Gun laws in Michigan: At the age of 18 or up, it is legal to buy a pistol with a purchase license from a private seller, at the age of 21, it is legal to buy a firearm from a Federally licensed (FFL) dealer. No purchase license is required to purchase a long gun (a firearm that is more than 26 inches long) in Michigan. According to state law, a long gun may be purchased by anyone aged 18 or over who is not subject to restrictions based on criminal history, mental health history, or other disqualifying factor. A person must be at least 18 years old to purchase a long gun from a federal dealer or a private seller under Michigan law.
Document 14: Indian Shaker Church and Gulick Homestead: The Indian Shaker Church and Gulick Homestead are an ensemble of historic buildings in The Dalles, Oregon, United States. Built by Henry Gulick directly on the Columbia riverbank in the 1890s, it is the only remaining 19th century fishing homestead in Oregon. Gulick, an employee of the locally-important Seufert salmon canning concern, included a church building in the complex in "ca." 1896 for his wife, Harriet, a member of the Wasco people. The church was the smallest of five Indian Shaker Church congregations in the state.
Document 15: Gun laws in Arizona: Arizona gun laws are found mostly in Title 13, Chapter 31 of the Arizona Revised Statutes. There is no registration or licensing of non-NFA firearms in Arizona. Section 13 - 3108 subsection B prohibits any political subdivision of the state from enacting any laws requiring licensing or registration. According to state law, a person must be 18 years of age to purchase any non-NFA firearm from any source; however, there is a federal age limit of 21 years on handgun purchases from federal firearms licensees.
ground_truth: 21 or older.
sub_queries: Which state is Glick-Sower House located? Answer: Iowa
how old do you have to be to buy a handgun in Iowa Answer: 21 or older.