Ginny,
Drumabodan is a townland. It comprises 329 acres of farmland and bog. Griffiths Valuation lists around 15 houses there in 1858. There was one Campbell property. Plots 2 & 3 were occupied by Robert Campbell. He had 59 acres of farmland and 19 of bog. Today it’s on the R249 road a few miles east of Kilmacrennan. You can locate it more accurately using the maps on Griffiths site.
http://www.askaboutireland.ie/griffith-valuation/index.xml?action=nameSearch
There was still a Campbell family farming there in the 1901 census:
http://www.census.nationalarchives.ie/pages/1901/Donegal/Kilmacrenan/Drumabodan/1192076/
They had left the townland by the time of the 1911 census.
The tithe applotment records list a William Campbell farming in Drumabodan in 1825. He might be the father of the Robert Campbell in Griffiths. See:
http://titheapplotmentbooks.nationalarchives.ie/search/tab/home.jsp
The family was Presbyterian (so likely descended from Scots settlers who arrived in Donegal in the early 1600s). Kilmacrennan Presbyterian church has no records earlier than 1848 so that will make tracing the family’s early history difficult. According to this link, the first Presbyterian church in Kilmacrennan opened in 1702. The original building was replaced in 1846.
http://www.fahanchurch.org/kilmacrennanleiterpresbyterian.htm
You mention a marriage in 1671. Clearly Kilmacrennan Presbyterian church didn’t exist then. There were very few Presbyterian churches in Ireland at that time. Presbyterianism came to Ireland with the Scots settlers. Initially their Ministers were allowed to use Church of Ireland churches for services (after the Church of Ireland service had finished) but this was then prohibited by the Church of Ireland bishops. Most Presbyterian Ministers were then expelled from Ireland. By the 1660s they had started to return though there were hardly any Presbyterian churches at that time. Religious services were therefore held in barns or peoples homes. So, in 1671, the couple may have been married in a private house by an itinerant Presbyterian Minister, typically over from Scotland. Or they may have even married in the local Church of Ireland, in the absence of the opportunity to marry in the Presbyterian faith. (Kilmacrennan Church of Ireland has no records earlier than 1818 though). You are unlikely to find any church records in Donegal for the 1600s. The 1703 marriage may have been one of the first in the newly constructed Presbyterian church in Kilmacrennan. (Tradition was to marry in the bride’s church if the couple came from different churches, so I am assuming that the bride was also Presbyterian and from the immediate area).
Can’t help you with the court records. Presumably there was some sort of land or inheritance dispute. In which case, at that period, that was probably heard in the consistory court (the Church court) but I’d be surprised if any records still exist from the 1600s for the case. You could try the National Archives in Dublin.
Here’s a link to a Co Donegal site which contains alittle more information about the area:
http://donegalgenealogy.com/kilmacproj.h
