For Ell(en) Jessop M 1833 +/- 2 yrs, Borris-in-Ossory RC parish, I found 0 rcds.
For Tho(mas) Bradley M ditto, I found no rcds within a relevant range.
For Ric(hard) Jessop B ????, Co. Laois or Offaly, with the father's forename unknown, I found 4 rcds: 1812 Clonsast CoI, 1812, 1834 Clonsast CoI, and 1834. All were in Co. Offaly. Father's forenames are unknown.
For George Jessop B ditto, I found 0 rcds.
For Tho(mas) Jessop B ditto, I found 1 rcd, Co. Offaly, 1853. This seems too late for your timeline.