If this relates to Dublin city then it might be worth checking the 'Ancient Freemen of Dublin' database on the Dublin City Library website :
https://databases.dublincity.ie/freemen/about.php
Many of these Freemen were admitted by virtue of completing an apprenticeship in one of the Dublin trade guilds.
Similar rules regarding freemen may have also applied in other large towns and cities.
As far as I know the Saddlers belonged to the same guild as Upholsters and Harness makers, in Dublin city at least, and they used Tailor's Hall on Back Lane as their meeting place (behind High Street).
see Wikipedia entry :
https://en.wikipedia.org/wiki/Tailors%27_Hall
Archiseek :
https://www.archiseek.com/2010/1706-tailors-hall-high-street-dublin/