Do the CDs state the occupation of father or mother and the birthplace of Elizabeth OGrady? John OGrady was listed as a blacksmith on Bessies marriage certificate.
Or on the marriage of Susan McPartland and John Ogrady apparently on 29th Dec 1887 ref 1888/001062 (from an old rootsweb.com listing. It might list an occupation.
I am thinking that if they don't and the actual birth certificate does, I might have to buy ithem to put my mind at rest. But that could prove expensive, but vital.