Magee/Griffith of Laheen, Killashandra

Greetings

Would appreciate assistance locating further information on the following:

1. Samuel Magee (1834-1898) a farmer in Laheen, Killashandra. Church of Ireland. (Perhaps Kildallen Church)
--Father was John. Wife - Jane. 

--Samuel had siblings including - William, David, Thomas, Robert, John, Richard, James and Elizabeth. Primary School - Mt Ennis School (per Census).  Robert's great grandson 'Sonny Magee' was living on the farm in 2011.

2. Margaret Jane Griffith (1848 - 1920).
--Father was Simon (Abt. 1800-1877). Residence of Glen. Church of Ireland. Mother unknown.

Marriage of Magee/Griffith: 30 Apr 1869 • Drumlane

Children:
a. Thomas Griffith - Emigrated to US/Altoona Pa. Married Martha Major.
b. David - Emigrated to US/Altoona Pa. Married Anna Liming.
c. Mary Ann - Married Jeffery Richmond. Children - Wm. Morton, Thomas Fredrick, Sarah Maud, Annie Frances & John James.
d. Robert - Married Mary Ann Abbott. Children - Eva Florence & John Samuel. *Residing with Margaret Jane (mother) per 1911 Census on family farm in Laheen.
e. Sarah Elizabeth - Married John Patton. Children - John Herbert, George Harold, Ida Mgt, Laura Eveleen, Percival Griffith. I believed buried in Wicklow.
f.  Anne Frances - Married Ralph Foster/Forster and lived in England. Death 1960.

Any additional details about Samuel Magee and/or Margaret Jane Griffith would be greatly appreciated. For example, location of the family farm, relatives, burial sites, local church documents, further ancestry information, etc.  

As well. I will be visiting the area and would genuinely appreciate any local assistance that may be available. Dates: 8Apr-14Apr (13th & 14th work best). Is that enough time?

Warm regards
Susan