can you name some people who attended this?
Henry B. Payne
Other contenders
Several other candidates arrived in Cincinnati with delegates pledged to them. Former Representative Henry B. Payne, an Ohio millionaire, had gathered a number of former Tilden supporters to his cause.
on what date did the 1880 democratic national convention occur? June 22 to 24, 1880 what was the purpose for this meeting? To nominate Winfield S. Hancock for president and William H. English for vice president in the US presidential election of 1880. in which venue was this held? Music Hall in Cincinnati, Ohio
Susan B. Anthony, Henry Watterson, Henry Watterson Hancock, Thomas F. Bayard,  Henry B. Payne, etc. William Henry Barnum , George Hoadly and others.
1880 Democratic National Convention 1880 Democratic National Convention 1880 Democratic National Convention
Platform and vice presidential nominee Introduction Preliminaries
Turning to other matters, the delegates listened as Susan B. Anthony addressed them with a plea for women's suffrage. The delegates took no action, and moved on to the platform, which Henry Watterson of Kentucky read aloud. The spirit of unanimity continued as the delegates approved it without dissent. The platform was, in the words of historian Herbert J. Clancy, "deliberately vague and general" on some points, designed to appeal to the largest number possible. In it, they pledged to work for "constitutional doctrines and traditions," to oppose centralization, to favor "honest money consisting of gold and silver", a "tariff for revenue only", and to put an end to Chinese immigration. Most of this was uncontroversial, but the "tariff for revenue only" would become a major point of debate in the coming campaign. Six men were officially candidates for nomination at the convention, and several more also received votes. Of these, the two leading candidates were Hancock and Thomas F. Bayard of Delaware.  William Henry Barnum of Connecticut, the chairman of the Democratic National Committee, called the convention to order at 12:38 p.m. An opening prayer was presented by Unitarian minister Charles William Wendte. Then, George Hoadly, a Tilden associate and future governor of Ohio, was elected temporary chairman. Hoadly addressed the crowd, then adjourned the convention until 10:00 a.m. the next day,
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1880 Democratic National Convention [SEP] Other contenders
Several other candidates arrived in Cincinnati with delegates pledged to them. Former Representative Henry B. Payne, an Ohio millionaire, had gathered a number of former Tilden supporters to his cause. Payne was a corporate lawyer and hard money advocate, but also a relative unknown outside Ohio. In April 1880, the "New York Star" published a tale that Tilden had bowed out of the race and instructed the Irving Hall faction to back Payne for the presidency. Tilden never confirmed the rumor, but after his letter of June 1880 to the New York delegation, many of his supporters did consider Payne among their likely choices.