IGRS publishes 1803 directory of Dublin's Merchants
The Irish Genealogical Research Society (IGRS) has created a free database of the Merchants and Traders listed in Wilson’s Dublin Directory, published in the 1803 edition of The Treble Almanac.
The database holds more than 7,500 entries searachable by individual name of the merchant/trader. You can also search by occupation (here's where to find out how many milliners, for example, were trading in the capital at the start of the 19th century (33)) and by street address (there were 31 businesses – nearly all of them legal firms – trading in French Street, now Mercer Street).
Each entry is also linked to a map from the Statistical Survey of the County Dublin, (Dublin, 1802).
To find out more and to search the Directory, see the IGRS website: IrishAncestors.ie.