Hi J,
Here's the closest match from www.rootsireland.ie/: (next closest is 1815 Clones)
Name:Christopher BleakleyDate of Birth:
Date of Baptism:27-Mar-1801Address:CrocknaboghillParish/District:CLONESGender:
CountyCo. Monaghan
Denomination:Church Of Ireland
Father:Thomas BleakleyMother:Anne Bleakley
No luck with William I'm afraid
No Bleakleys in Monaghan in the Irish Census of 1841or or 51 or in the Tithe Applotments
Here's the only Bleakley in Clones in Griffiths Valuation 1861 (free at http://www.askaboutireland.ie/)
TenantFamily Name 1BLEAKLEYForename 1JAMES
LandlordFamily Name 2BENSONForename ADAM
LocationCountyMONAGHANBaronyDARTREEUnionCLONESParishCLONES
TownlandCROSSMOYLE
Place NameFERMANAGH STREETPlace TypeOTHERPublication DetailsPosition on Page10Printing Date1861Act15&16Sheet Number11Map Reference10 16
Col