÷National Bourbon Heritage Month is an observance in the United States that calls for celebration of bourbon as America's "Native Spirit".
 On August 2, 2007, the US Senate declared September 2007 as "National Bourbon Heritage Month."
 The bill, sponsored by Republican Senator Jim Bunning of Kentucky, passed by unanimous consent.
 The resolution calls for consumers who enjoy bourbon to do so responsibly and in moderation.
 The bill reinforces the 1964 Act of Congress that declared bourbon "America's Native Spirit" by celebrating the family heritage, tradition and deep-rooted legacy that the bourbon industry contributes to the United States.
Heaven Hill Distilleries, Inc. is an American, private family-owned and operated distillery company headquartered in Bardstown, Kentucky that produces and markets the Heaven Hill brand of Kentucky Straight Bourbon Whiskey and a variety of other distilled spirits.
 Its current distillery facility, called the Heaven Hill Bernheim distillery, is in Louisville, Kentucky.
 It is the seventh-largest alcohol supplier in the United States, the second-largest holder of bourbon whiskey inventory in the world, the largest independent family-owned and operated producer and marketer of distilled spirits in the United States, and the only large family-owned distillery company headquartered in Kentucky (not counting the Brown-Forman Corporation, which is publicly traded but more than two-thirds family-controlled, or the Sazerac Company, which is family-owned but headquartered in Louisiana).
Kentucky Tavern is a brand of straight bourbon whiskey produced by the Sazerac Company at the Barton Distillery located in Bardstown, Kentucky, who acquired the brand from United Distillers in 1995.
 The brand was originally produced and owned by the R. Monarch Distillery (RD #24, 2nd Dist.)
 of Owensboro, Kentucky, which entered bankruptcy in 1898 and was purchased by James Thompson in 1901 who renamed the company Glenmore Distillery Company with locations in Owensboro and Louisville, Kentucky.
 In 1903 The Kentucky Tavern trademark was first registered.
 Glenmore proved a successful and durable company, its main brand being Kentucky Tavern.
 It is usually produced as an 80 proof liquor, although a 100 proof is also available.
Maker's Mark is a small-batch bourbon whiskey produced in Loretto, Kentucky, by Beam Suntory.
 It is bottled at 90 U.S. proof (45% alcohol by volume) and sold in distinctively squarish bottles sealed with red wax.
 The distillery offers tours, and is part of the American Whiskey Trail and the Kentucky Bourbon Trail.
Pemberton Distillery is a craft distillery located in Pemberton, British Columbia.
 The Pemberton Valley, which has sometimes been referred to as "Spud Valley", is known in the potato industry for its seed potatoes.
 Pemberton Distillery uses potatoes to make some of its distilled beverages. Its product brand names include Schramm Vodka, Schramm Gin, Pemberton Distillery Single Malt Whisky and Pemberton Distillery Bourbon Barrel Aged Apple Brandy.
The Kentucky Bourbon Trail (sometimes informally shortened to "the Bourbon Trail") is a program of the Kentucky Distillers' Association (KDA) to promote the bourbon industry in Kentucky.
 The KDA has registered the phrase "Kentucky Bourbon Trail" as a trademark.
Elijah Craig is a premium brand of bourbon whiskey produced by the Heaven Hill Distillery company.
 The company is headquartered in Bardstown, Kentucky, and its distillery (called the Heaven Hill Bernheim distillery) is in Louisville, Kentucky.
 The brand is sold as a straight bourbon.
 It is sold in glass 750ml bottles, and the Small Batch bourbon is also available in glass 1.75L bottles.
Douglas A. Boyd is an oral historian, archivist, folklorist and author and currently directs the Louie B. Nunn Center for Oral History at the University of Kentucky.
 He graduated from Denison University with a B.A. in History and graduated from Indiana University with an M.A. and Ph.D. in Folklore.
 He is known for his work regarding oral history and digital technologies including his work designing and managing the OHMS system (Oral History Metadata Synchronizer).
 Recently served as executive producer of the documentary "Kentucky Bourbon Tales: Distilling the Family Spirit", as well as the award-winning documentary "Quest for the Perfect Bourbon: Voices of Buffalo Trace Distillery" and is active in the Oral History Association, Society for American Archivists, and the American Folklore Society.
 Formerly, Boyd managed the digital program for the University of Alabama Libraries, directed the Kentucky Oral History Commission, and served as the senior archivist for the folklife and oral history collections at the Kentucky Historical Society.
 He is co-editor of "Oral History and Digital Humanities: Voice, Access, and Engagement" with Mary A. Larson.
 Boyd is also author of "Crawfish Bottom: Recovering a Lost Kentucky Community" which was published by University Press of Kentucky and was featured on C-Span's Book TV.
 He also regularly appears on the radio show "Saving Stories".
 He is also the co-host of The Wisdom Project Podcast, with Kopana Terry.
Buffalo Trace Distillery is a distillery located in Frankfort, Kentucky.
 It has historically been known by several names, including most notably, the George T. Stagg Distillery and the O.F.C. Distillery.
 Its namesake bourbon brand, "Buffalo Trace" Kentucky Straight Bourbon whiskey, was introduced in August 1999.
 The company claims the distillery is the oldest continuously-operating distillery in the United States.
 Located on what the company claims was once an ancient buffalo crossing on the banks of the Kentucky River in Franklin County, the distillery is named after the American bison.
 The Sazerac Company, an American family-owned producer and importer based in New Orleans, Louisiana, purchased the distillery in 1992 and is now the parent company of Buffalo Trace Distillery.
Willett Pot Still Reserve Bourbon is brand of a bourbon whiskey produced in Bardstown, Kentucky by the Willett Distillery.
 It is a Kentucky straight bourbon whiskey brand introduced in 2008 and bottled at 47% abv, with 8–10 year aging.
 It is sold in glass 750 ml and 1.75 liter bottles.
 The company is identified on the product label as the Willett Distilling Company, which was the original name of the company until its name was changed in 1984 to Kentucky Bourbon Distillers, Ltd. (KBD).
 In October 2012, the company announced that it would return to using the Willett name as its primary business name.
 Recent bottlings are identified on the labels as a small batch bourbon, whereas it was originally released as a single barrel bourbon.

Question: Which distillery is a part of a program of the KDA to promote the bourbon industry in Kentucky?
Answer: Maker's Mark