Question: Which owner of the San Diego Padres baseball team was also married to Joan Kroc?

full_context: Document 1: Joan's on Third: Joan's on Third is a specialty food marketplace and restaurant located on Third Street in Los Angeles, California. Joan's is situated in an area popular with Angelenos for its eating and shopping establishments, located between the Beverly Center on La Cienega Boulevard and Farmer's Market at the Grove on Fairfax Avenue.
Document 2: Marjorie Merriweather Post: Marjorie Merriweather Post (March 15, 1887 – September 12, 1973) was a leading American socialite and the owner of General Foods, Inc. She used much of her fortune to collect art, particularly pre-revolutionary Russian art, much of which is now on display at Hillwood, the museum that was her estate. She is also known for building Mar-a-Lago, an estate now owned by Donald Trump.
Document 3: Bob Wian: Robert C. "Bob" Wian (June 15, 1914 – March 31, 1992) was the founder of the Big Boy restaurant chain. The restaurant got its start in a 10-stool Glendale, California, hamburger stand in 1936 with an investment of $350 which Wian got from the sale of a used car. He sold the Big Boy chain to the Marriott Corp. in 1967 for $7,000,000. Wian died in Newport Beach, California, and was survived by his wife, June, and two sons, Chapman Baehler and Casey Wian, two daughters, Barbara Baehler and Julie Wian, and sisters Doris Weis and Katherine Kurvink.
Document 4: El Camino Memorial Park: El Camino Memorial Park cemetery is located at 5600 Carroll Canyon Road in the Sorrento Valley neighborhood of San Diego. Founded in 1960, El Camino is a 220 acre memorial park and is the final resting site for Jonas Salk (founder of the polio vaccine and the renowned Salk Institute), as well as several members of the well-known Kroc family (humanitarians, philanthropist, former owners of San Diego Padres baseball team, as well as Ray Kroc's position as C.E.O of McDonald's fast food chain). There are many other prominent citizens from the greater San Diego and Los Angeles area as well.
Document 5: McDonald's: McDonald's is an American hamburger and fast food restaurant chain. It was founded in 1940 as a barbecue restaurant operated by Richard and Maurice McDonald, in San Bernardino, California. In 1948, they reorganized their business as a hamburger stand, using production line principles. The first McDonald's franchise using the arches logo opened in Phoenix, Arizona in 1953. Businessman Ray Kroc joined the company as a franchise agent in 1955 and subsequently purchased the chain from the McDonald brothers. Based in Oak Brook, Illinois, McDonald's confirmed plans to move its global headquarters to Chicago by early 2018.
Document 6: Cordia Harrington: Cordia Harrington is the founder, CEO, and president of the Tennessee Bun Company and is nicknamed "The Bun Lady." She originally bought a McDonald's franchise in Illinois, and purchased a Greyhound bus franchise and changed its routes to run past the restaurant. She then joined the restaurant’s corporate bun committee, and eventually became their bun supplier. At that point she sold her franchises, emptied her bank accounts and borrowed $13.5 million to create Tennessee Bun Company in 1996. She launched a spin-off trucking business in 1999 called Bun Lady Transport. That year she also opened Nashville Bun Company, a producer of English muffins for McDonald’s, Sheetz, Perkins, and others. In 2005 she added a Hearth line to Nashville Bun Company to supply McDonald’s and O’Charley’s and purchased the Cold Storage of Nashville freezer facility. The newest part of her business is the CornerStone Baking Company, founded in 2007, which produces frozen dough pieces for several casual dining restaurants.
Document 7: Teresa Heinz: Teresa Heinz Kerry (born Maria Teresa Thierstein Simões-Ferreira on October 5, 1938), also known as Teresa Heinz, is a Mozambican (at the time, part of Portuguese East Africa) born American businesswoman and philanthropist. She was the widow of former U.S. Senator H. John Heinz III and is the wife of former U.S. Secretary of State, long-time Senator and 2004 presidential nominee John Kerry.
Document 8: Joan Bennett Kennedy: Virginia Joan Kennedy (nee Bennett, born September 2, 1936) is an American socialite, musician, author, and former model, and was the first wife of U.S. Senator Edward ("Ted") M. Kennedy (1932-2009) of Massachusetts.
Document 9: Debbi Fields: Debbi Fields (born September 18, 1956) is the founder and spokesperson of Mrs. Fields Bakeries. Additionally, she has written several cookbooks and makes cookies. She currently lives in Nashville, Tennessee, with her husband, former Holiday Inn and Harrah's CEO Michael Rose.
Document 10: Myra Kraft: Myra Hiatt Kraft ("née" Myra Nathalie Hiatt; December 27, 1942 – July 20, 2011) was an American philanthropist and the wife of New England Patriots and New England Revolution owner Robert Kraft.
Document 11: Dave Thomas (businessman): Rex David "Dave" Thomas (July 2, 1932January 8, 2002) was an American businessman and philanthropist. Thomas was the founder and chief executive officer of Wendy's, a fast-food restaurant chain specializing in hamburgers. He is also known for appearing in more than 800 commercial advertisements for the chain from 1989 to 2002, more than any other company founder in television history.
Document 12: McDonald's No. 1 Store Museum: The McDonald's #1 Store Museum is housed in a replica of the former McDonald's restaurant in Des Plaines, Illinois, opened by Ray Kroc in April 1955. The company usually refers to this as The Original McDonald's, although it is not the first McDonald's restaurant but the ninth; the first was opened by Richard and Maurice McDonald in San Bernardino, California in 1940, while the oldest McDonald's still in operation is the third one built, in Downey, California, which opened in 1953. However, the Des Plaines restaurant marked the beginning of future CEO Kroc's involvement with the firm. It opened under the aegis of his franchising company McDonald's Systems, Inc., which became McDonald's Corporation after Kroc purchased the McDonald brothers' stake in the firm.
Document 13: Joan Kroc: Joan Beverly Kroc (née Mansfield, previously Smith; August 27, 1928 – October 12, 2003), also known as Joni, was the third wife of McDonald's CEO Ray Kroc. She was also known for her involvement in the McDonald's organization and for her philanthropy.
Document 14: The Founder: The Founder is a 2016 American biographical drama film directed by John Lee Hancock and written by Robert Siegel. The film stars Michael Keaton as businessman Ray Kroc, and portrays the story of his creation of the McDonald's fast food chain. Nick Offerman and John Carroll Lynch co-star as McDonald's founders Richard and Maurice McDonald.
Document 15: Ray Kroc: Raymond Albert "Ray" Kroc (October 5, 1902 – January 14, 1984) was an American businessman. He joined the Californian chain McDonald's in 1954 and built it into a nationwide and eventually global franchise, making it the most successful fast food corporation in the world. Controversially, Kroc would present himself as the founder of McDonald's during his later life. Kroc was included in "", and amassed a fortune during his lifetime. He owned the San Diego Padres baseball team from 1974 until his death in 1984.
ground_truth: Ray Kroc