1655 is a bit early for most genealogy on line, generally this information is found at the National Library or the National
Registry of Deeds:
Wm. Webb Esquire, Garranemanagh, Limerick Nov 1714 & Nov 1722
I looked in the records for Landed Estates but nothing for
Webb that seemed right. www.landedestates.ie
An Esquire was not Aristocracy or Nobility - a person given lands by Royalty for favours and in 1600 possible helped in the Cromwell campain in Ireland.
An esquire was often a person who rented/lease large tracts of land from the Nobility and then sub-let for income. This is where the term Gentleman Farmer applies. An Esquire could also be a retired Officer from the British Army, a judge or lawyer someone of 'standing' in an area. In Ireland these folks would often have a second home in Dublin for the social season of persons of their station.
You could try the Peerage of Ireland which is basically about the Nobility but it could be possible that a person of standing they might marry such a person. Might be worth a look.
Donated Estate records contain a lot of information about their tenants. The can be found even in county libraries under local studies. Usually found in manuscripts at the National level.
Emlaghfad, Sligo is a parish and a townland in the Union of
Boyle, Sligo & Tobeercurry (within 12 mi.)