Hi Theresa
Had a look at the Dungannon RC parish records and found the following baptisms :
13 Nov 1836 Patrick, son of James McDermott and Sarah Morrison. Sponsors : Patrick Morrison and Catherine McKeever(?)
27 Feb 1838 James, son of James McDermot and Sarah Hillen (sic). Sponsor : Allice Hillen
21 April 1839, John, son of John (sic) McDermot and Sara Morison. Sponsors : Hugh and Anne Britain(?)
26 May 1842, Jno (John), son of James McDermot and Sara Morison. Sponsors : Michl and Mary/Margt(?) Millar
The records are in poor condition and hard to read, hence the (?) so I might go back and have another look at them in a few weeks' time. I could not see any sign of Mary Jane. She could have been baptised in Dungannon, but the priest didn't record the baptism - happened a lot unfortunately.
As you can see from the records above, the priest wasn't too particular about getting the names right!!!
I also found this baptism :
10 Jun 1840 Saran Anne Conlan, daughter of Charles Conlan and Anne Hillen. Sponsor : Sara McDermot
The Sara McDermot could be Sara Morrison McDermott as there weren't too many McDermotts mentioned in these records.
There were children recorded for a Patrick Morrison (sponsor to Patrick McDermott) and he is probably Sarah's brother. I didn't take a note of them, as I was running out of time, but if you would like me to, I can do that in the near future.
Kind regards
Deirdre