"First Wombwell with his brazen band":- George Wombwell (1777 - 1850) Founded Wombwell's Travelling Menagerie
[https://en.wikipedia.org/wiki/George_Wombwell]

The illustration below shows Wombwell's visit to Windsor Castle in 1847. His "brazen band" are on the right.

"I praised the Anti corn-Law League":- The Anti-Corn-Law League aimed at the abolition of the unpopular Corn Laws, which protected landowners' interests by levying taxes on imported wheat, thus raising the price of bread at a time when factory-owners were trying to cut wages. The corn laws were repealed in 1846.

"Then to Luck's Hall we straightway went" The Lucks All stood on the corner of Gray Street which was off Carruthers Street and Mill Street in what is now called New Islington.
[Pubs of Manchester http://pubs-of-manchester.blogspot.co.uk/search?q=luck]

"And when in Peter Street I call, I'll s**t upon the Free Trade Hall":- The Anti-Corn Law League built a temporary timber pavilion in 1840 to hold large public meetings because the other spaces in Manchester were not big enough. Its brick replacement was built in 1842. The current building was opened in 1856. [Manchester Libraries Information and Archives http://www.archivesplus.org/history/anti-corn-law-league/] [https://en.wikipedia.org/wiki/Free_Trade_Hall]

A poster advertising an ACLL Bazaar to be held at Free Trade Hall in Manchester on Oct. 15th (probably 1845). Supporters would donate goods which would be sold to make money for the ACLL. The League also had their own merchandise for sale such as buttons, badges, envelopes, books, and perhaps even china wear like plates and figurines. Online Library of Liberty http://oll.libertyfund.org/pages/cobden-and-the-anti-corn-law-league