Question: Who was the older brother of the man who promoted a beer by a brewing company based in Louisville, Kentucky?

<P0-S0> Billy Beer was a beer first made in the United States in July 1977, by the Falls City Brewing Company. <P0-S1>  It was promoted by Billy Carter, whose older brother Jimmy was the incumbent President of the United States. <P0-S2>  In October 1978, Falls City announced that it was closing its doors after less than a year of Carter's promotion. <P0-S3>  The beer was produced by Cold Spring Brewing, West End Brewing, and Pearl Brewing Company. <SEP> <P1-S0> Falls City Brewing Company was based in Louisville, Kentucky, USA. <P1-S1>  The company operated from 1905 until 1978. <P1-S2>  After the company closed the Falls City brand was purchased by a group of investors who sold it in the late 1990s to the Pittsburgh Brewing Company who produced the brand until around 2007. <P1-S3>  The brand name "Falls City Beer" was revived in 2010, and a beer is contract brewed at Sand Creek Brewing Company for a Louisville computer software entrepreneur. <SEP> <P2-S0> Christian Moerlein Brewing Co. is a private beer company that began production in 1853 in Cincinnati, Ohio by German immigrant Christian Moerlein. <P2-S1>  Before closing its doors in 1919 as result of prohibition, Christian Moerlein was among the ten largest American breweries by volume. <P2-S2>  In 1981, the brand was revived by the Hudepohl Brewing Company as a "better beer" a precursor to the current craft beer category and is considered a pioneer craft beer of today's craft beer movement. <P2-S3>  In 1999, Hudepohl-Schoenling Brewing Co. sold out to a group of out-of-town owners, a sale that included the famed Christian Moerlein craft beer brand. <P2-S4>  In 2004, Greg Hardman a Cincinnati resident purchased Christian Moerlein, as well as 65 other historic Cincinnati brands, returning local ownership to Cincinnati in a move that included a plan to return Cincinnati's grand brewing traditions. <P2-S5>  The four phase plan was, 1) return the local ownership of Cincinnati's great beer brands to Cincinnati; 2) build their base of sales to; 3) open local brewing operations in the heart of Cincinnati's historic Brewery District and; 4) open a World-class Moerlein Lager House on the banks of the Ohio River to act as a signal that beer is back in Cincinnati. <SEP> <P3-S0> Beer production in Australia has traditionally been dominated by regional producers. <P3-S1>  Since the 1980s there has been a steady stream of takeovers and amalgamations, and now the two major producers (who were once Australian owned) are Carlton & United Breweries (CUB) and Lion. <P3-S2>  In December 2011, CUB became a subsidiary of British multinational SABMiller (the then world second largest international brewing company) and in October 2016 CUB became 100% owned by Anheuser-Busch InBev (AB InBev) the world's largest brewing company based in Belgium. <P3-S3>  Since October 2009, Lion has been a subsidiary of Japanese brewer, Kirin Holdings Company Limited a brewing company established in 1885. <P3-S4>  The largest remaining Australian owned brewer is Coopers Brewery with a market share of about 4% of total beer volume sales in Australia.