Hi Csantia213 (and thanks Jane for your tips),
While I can't assist you directly with your question re Hugh and Anne Morrow, I'm in the very early stages of trying to track down my Cavan Morrow ancestors too. So I'm writing to you in case either of us find out anything - as our relatives may or may not be fairly closely related.
My Morrow connection: My great great grandfather migrated to Australia in around the late 1840s or early 1850s and was born between about 1827 and 1832 (he's recorded his age differently on marriage and on son's birth certificate. He was illiterate). His mother's maiden name was Elizabeth Morrow (stated on Thomas Richards senior's marriage certificate) as "Bessie" Morrow) and she married William Richards in Ireland. Given Thomas Richards age, his Mum, Elizabeth Morrow, would probably have been born approximately between 1800 and 1810. However, they were from Killeshandra, not Ballyjamesduff.
I'm planning to visit Ireland and Cavan (first time) for 2 or 3 days in January and hope to find out more either before I go or while I'm there.
Kind regards,
Julie Reif