Question:
Albert Goodwill Spalding (September 2, 1849 - September 9, 1915) was an American pitcher, manager and executive in the early years of professional baseball, and the co-founder of A.G. Spalding sporting goods company. He was born and raised in Byron, Illinois. He played major league baseball between 1871 and 1878. Spalding set a trend when he started wearing a baseball glove, and eventually opened his sporting goods store.
In the months after signing for Chicago, Hulbert and Spalding organized the National League by enlisting the 2 major teams in the East and the 4 other top teams in what was then considered to be the West, also known as the jungle. Joining Chicago initially were the leading teams from Cincinnati, Louisville, and St. Louis. The owners of these western clubs accompanied Hulbert and Spalding to New York where they secretly met with owners from New York City, Philadelphia, Hartford, and Boston. Each signed the league's constitution, and the National League was officially born. "Spalding was thus involved in the transformation of baseball from a game of gentlemen athletes into a business and a professional sport." Although the National Association held on for a few more seasons, it was no longer recognized as the premier organization for professional baseball. Gradually, it faded out of existence and was replaced by myriad minor leagues and associations around the country. In 1886, with Spalding as President of the franchise, the Chicago White Stockings, (today's Chicago Cubs), began holding spring training in Hot Springs, Arkansas, which subsequently has been called the "birthplace" of spring training baseball. The location and the training concept was the brainchild of Spalding and his player/manager Cap Anson, who saw that the city and the natural springs created positives for their players. They first played in an area called the Hot Springs Baseball Grounds. Many other teams followed the concept and began training in Hot Springs and other locations. In 1905, after Henry Chadwick wrote an article saying that baseball grew from the British sports of cricket and rounders, Spalding called for a commission to find out the real source of baseball. The commission called for citizens who knew anything about the founding of baseball to send in letters. After three years of searching, on December 30, 1907, Spalding received a letter that (erroneously) declared baseball to be the invention of Abner Doubleday. The commission, though, was biased, as Spalding would not appoint anyone to the commission if they believed the sport was somewhat related to the English sport of rounders. Just before the commission, in a letter to sportswriter Tim Murnane, Spalding noted, "Our good old American game of baseball must have an American Dad." The project, later called the Mills Commission, concluded that "Base Ball had its origins in the United States" and "the first scheme for playing baseball, according to the best evidence available to date, was devised by Abner Doubleday at Cooperstown, N.Y., in 1839." Receiving the archives of Henry Chadwick in 1908, Spalding combined these records with his own memories (and biases) to write "America's National Game" (published 1911) which, despite its flaws, was probably the first scholarly account of the history of baseball.
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Did they get a good response?

Answer:
letters. After three years of searching, on December 30, 1907, Spalding received a letter

Answer the question at the end by quoting:

Bernard Mathew Leadon III (pronounced led-un; born July 19, 1947) is an American musician and songwriter, best known as a founding member of the Eagles. Prior to the Eagles, he was a member of three pioneering and highly influential country rock bands: Hearts & Flowers, Dillard & Clark, and the Flying Burrito Brothers. He is a multi-instrumentalist (guitar, banjo, mandolin, steel guitar, dobro) coming from a bluegrass background. He introduced elements of this music to a mainstream audience during his tenure with the Eagles.
Leadon was the last original member to join the Eagles, a band initially formed by guitarist/singer Glenn Frey, drummer/singer Don Henley, and former Poco bassist/singer Randy Meisner. Leadon is often credited with helping shape the band's early country-rock sound, bringing his strong sense of harmony as well as his country, bluegrass and acoustic sensibilities to the group. Instruments he played during his tenure in the band were electric guitar, B-Bender, acoustic guitar, banjo, mandolin, dobro and pedal steel guitar. Upon the release of their debut album, Eagles, the group met with near instantaneous success, due largely to the strength of their hit singles, "Take It Easy", "Peaceful Easy Feeling" and "Witchy Woman" (co-written by Leadon and Henley), all of which highlighted Leadon's multi-instrumental talent on electric guitar, B-Bender, banjo, and harmony vocals. Their follow-up, Desperado, was another strong country-rock venture highlighted by the classics "Tequila Sunrise" and the title track. Leadon had a prominent role on the album, but it was met by surprisingly lukewarm reviews and lackluster sales. As a result, the band attempted to distance itself from the "country rock" label for their third album On the Border. In doing so, Leadon encouraged the group to recruit his old friend, guitarist Don Felder, to the band. The result was the guitar-heavy top ten hit "Already Gone". The album also included "My Man", Leadon's touching tribute to his old bandmate and friend, Gram Parsons, who had died of a drug overdose the year prior at Joshua Tree National Monument in southeastern California. With the wild success of On the Border and its follow-up smash, One of These Nights, tension within the band grew, as Leadon grew increasingly frustrated by the band's direction away from his beloved country and bluegrass and toward album-oriented stadium rock. He famously quit the band in 1975 by pouring a beer over Glenn Frey's head. He later cited a need to get healthy and break the vicious cycle of touring, recording and heavy drug use that was rampant within the band. Upon his departure, Asylum Records released Their Greatest Hits (1971-1975), which highlighted the band's Leadon years and went on to become the biggest-selling album of all time for sales in excess of 42 million units, awarded to the band members by the RIAA. He was replaced by former James Gang guitarist/singer, Joe Walsh. Although it has long been believed that he left because he was dissatisfied with the band moving into rock and roll, Leadon denies it and said in 2013: "That's an oversimplification; it implies that I had no interest in rock or blues or anything but country rock. That's just not the case. I didn't just play Fender Telecaster. I played a Gibson Les Paul and I enjoyed rock & roll. That's evident from the early albums."

Who else was in the band?
formed by guitarist/singer Glenn Frey, drummer/singer Don Henley, and former Poco bassist/singer Randy Meisner.