Editing Allison Engine Company (section)

===Allison's move to Florida===
Allison moved to Florida to invest in real estate after World War I, leaving Gillman in charge.  Allison did not want the company to wither, so he asked Gillman to build a V-12 marine engine worthy of the Allison name.  Gillman then proceeded to build an engine that relied on what was learned from building and modifying the venerable Liberty engine.<ref name="Whitney" />

Allison's company was sold to Captain [[Eddie Rickenbacker]] in 1927 for $700,000 after Allison moved to Florida. In 1929, shortly after the death of James Allison, the company was purchased by the [[Fisher Body|Fisher brothers]]. The Fishers sold the company to [[General Motors Corporation|General Motors]], who owned it for most of its history. The Allison Engine Company was acquired in 1995 by [[Rolls-Royce Group PLC|Rolls-Royce plc]],<ref>{{cite web |title=Indianapolis Branch |url=http://www.rolls-royce.com/about/heritage-trust/branches/indianapolis-branch.aspx |website=Rolls-Royce |access-date=13 September 2021 |archive-url=https://web.archive.org/web/20201112031936/http://www.rolls-royce.com/about/heritage-trust/branches/indianapolis-branch.aspx |archive-date=12 November 2020}}</ref> and became the [[Rolls-Royce North America|Rolls-Royce Corporation]] subsidiary.<ref name="Leonard">John Leonard's articles in various issues of the Allison Branch newsletters{{nonspecific|date=September 2021}}</ref>