to create its own city, but to also remain independent of Thousand Oaks. A 1963 attempt at a cityhood election failed when the Janss's Rancho Conejo Industrial Park and the Talley Corporation refused to join the efforts. Activist Reba Hays Jeffries of the Stagecoach Inn had a different explanation for interviewers when addressing why efforts at an independent municipality failed. She claimed the cityhood supporters were required to collect signatures from owners who represented 29% of the land area in Newbury Park. As the efforts collected signatures from 29% of registered voters, and not Newbury Park landowners, the petition never appeared on the ballot. Reba M.H. Jeffries was one of several opponents to the idea of annexation when it was first proposed in 1967. Jeffries feared for the identity of Newbury Park and was quoted in an interview saying: "It's a shame that the Thousand Oaks personality is overpowering to the extent that Newbury Park is losing its large ranches and freedom." Jeffries was also opposed to the proposition to demolish the Stagecoach Inn in 1964, and fought to keep the Newbury Park Post Office in town. The City of Thousand Oaks was formally established on September 29, 1964, and throughout the late 1960s and throughout the 1970s, most Newbury Park land was annexed by the City of Thousand Oaks. The annexed area was formerly controlled by Ventura County, but as of 2016, all but Casa Conejo and Ventu Park is within Thousand Oaks city limits. Together with Thousand Oaks, Newbury Park was part of a master planned community by the Janss Investment Company. Newbury Park has had an increasing population due to the presence of biotechnology firms and technology corporations, such as Amgen (world headquarters) and Baxter, and other high-technology corporations. President George W. Bush visited the Newbury Park High School and the Satwiwa Native American Indian Culture Center in 2003. Housing The community contains two major new residential areas, Rancho Conejo Village (built on the site of the former Rancho Conejo Airport, where portions of the film It's a Mad, Mad, Mad, Mad World were filmed) and Dos Vientos Ranch. The first planned community in Newbury Park was Casa Conejo, located in a roughly square-shaped unincorporated area. Geography Newbury Park can be described as a town, community, or section mostly within the Thousand Oaks city limits in addition to rural areas west of Thousand Oaks. Newbury Park is