the Adair County Free Press. Edwin's son Kenneth (1895–1976) and grandson Edwin J. Sidey (1925–2008) succeeded as publishers and editors. Well-known White House reporter forTime/Life and author Hugh Sidey (1927–2005), brother of Edwin J., was also closely associated over time with the family's journalism and photojournalism legacies. Publisher/Editor Linda E. Sidey, widow of Edwin J., relocated the newspaper business and its associated photo gallery to 141 Public Square in December 2010. ADCO Enterprises, LC is owned primarily by Adair County area investors. It was founded with the support of the Community Development Corporation of Greenfield. Architect Dan Tindall of Grinnell was employed as redevelopment project manager. Tindall is also co-owner of the award-winning vintage Blackhawk Hotel at Cedar Falls, Iowa. Freedom Rock The Freedom Rock is a large boulder that marks the entrance to an old rock quarry. Beginning in 1999, Ray "Bubba" Sorensen II has painted the rock every Memorial Day with different patriotic images and sayings in support of the United States military. There are also several murals throughout Adair County featuring Bubba's patriotic artwork. Iowa Aviation Museum The Iowa Aviation Museum celebrates Iowa's aviation heritage from the state's first recorded flight in 1910 to its native sons and daughters exploring the universe. Adair County Heritage Museum Complex Established in 1986, the Adair County Heritage Museum is a five-acre complex dedicated to preserving and display- in the history of Adair County for the benefit and enlightenment of future generations. Located on the west edge of Greenfield, it is operated by the Adair County Historical Society. Schildberg Antique Car Collection Dennis Schildberg, a local car collector, needed a location to house his extensive collection of antique cars. After remodeling an old Ford dealership building, he was able to house his cars and display them for the public to enjoy. He started collecting cars with his wife Marlene in the early 1960s, and since then they have collected over 15 antique vehicles. All the vehicles are in running condition except a 1936 Chevy. In 1982, Schildberg started restoring the cars. The Schildbergs involve their cars in parades and car shows. Although Schildberg died in 1992, his collection is still available to the public. The museum is open by appointment and for special local events. Parks and recreation The Ken Sidey Nature Area is located 2 1/2 miles southwest of Greenfield at 2521 Lewis Avenue. There are 107 acres of timberland