The parish of Ballinderry is in Co. Antrim. The church of Ireland in the parish has baptism records from 1806 onwards. There was also a Moravian church with records from 1754; the Presbyterian church doesn’t appear to have any baptism or marriage records & the RC records start in the 1820s. Copies of the Church of Ireland & Moravian records are held in PRONI in Belfast.
A small portion of the 1851 census for Ballinderry has survived and there were certainly McDonald household sin the parish. For example:
There were a few McDonalds in the area in the 1901 census. They were a mix of Presbyterian & RC.
Tradition was to marry in the bride’s church, so Portadown Presbyterian is likely the Ruddell family church. It’s records start in 1839 so you may find Priscilla’s baptism and parents listed there. (Copy in PRONI).
Griffiths Valuation 1864 lists John Macoun, George & William John Ruddell all farming in Tamnafiglassan townland. John Ruddell is listed in the tithe applotment records for 1834. He’s gone by Griffiths in 1864 suggesting he had died. I’d guess one of them might be John’s son.
George was a bachelor who died in 1891 aged 75.
William John was another bachelor who died in 1872 aged 42: