The event of the American Revolution, however, somewhat changed this aspect of affairs. The genuineness of Maryland's loyalty was certainly in one way nobly demonstrated, and by an act of patriotic self-sacrifice, gave to her an unlooked-for reward in a prosperous future. Her people quickly espousing the cause of liberty, at once rejected articles of foreign make and gave choice to those of home production, thus stimulating industries in their midst which had not before flourished from lack of encouragement and support. Actuated by a feeling of sympathy for their fellow-citizens of Boston--whom the British Parliament in 1774 attempted to shut out from commercial intercourse with every part of the world--the citizens of Baltimore called a town meeting, unanimously recommending a general congress of delegates, to meet at Annapolis, to take action against this indignity on American liberties. The congress met June 22, 1774, offering their heartiest support not only in resolution, but in the more substantial way of money and food, as aid to their Boston friends in the resistance to British tyranny and oppression, supplementing these patriotic resolutions by one making the importation of English goods an act disloyal to the sentiment of American hearts. The earliest manufacturing hatter in Baltimore, of whom any definite knowledge can be obtained, was David Shields, who kept store at No. 14 Gay street. As the location was on the east side of Gay and the seventh house from the corner of Baltimore street, it probably was about half-way between Baltimore and Fayette streets. Here he sold to his patrons the products of his "back shop" or factory, which was located on the south side of East, now Fayette street, at a point half-way between Gay and Frederick streets. Mr. Shields' father was from Pennsylvania. David Shields was born in the year 1737, and his descendants of to-day include some of the wealthiest and most refined citizens of Baltimore. In Scharf's "Chronicles of Baltimore" his name is mentioned, in connection with others, in the year 1769 as aiding by a general subscription in procuring an engine for the extinguishment of fires; this engine was for the "Mechanical Fire Company," and was the first machine of its kind in Baltimore, costing the sum of two hundred and sixty-four dollars. Unfortunately, the information gained of Mr. Shields' business career is so meagre as to leave much to the imagination, but it is natural to suppose that in 1769, being thirty-two years of age, he must have been established in business. That Mr. Shields was a public-spirited citizen is further proven by his connection with the First Baptist Society, being one of a committee constituted for the purpose of purchasing a lot upon which to erect a church; this was in 1773, two years before the Revolution. The church was built on Front street, upon the site now occupied by the Merchants' Shot Tower, and was the first Baptist Church erected in Baltimore.