RootsChat.Com

Thank you Shane!
Would you happen to know of an index anywhere that would tell me what years these registers go back to? I'm hoping around 1800.

You're welcome Chilis, my family were protestants in the area at the same time and a lot of the men's middle names are either their mother's maiden names or their father's mother's maiden names.  Since Elizabeth is a McDonald, maybe John A's mother was a Dixon which would put her birth in the "circa 1800" timeframe, but it might make more sense her mother was a Dixon if the Bradleys weren't in Tullamore. 
I have something else that might interest you, the 1901 census of Tullamore.  I'm not sure if you've seen it already, quite a few McDonald families and McDonnell which I can list if you like...

Other townlands of Kilbride are also listed, you may know who some of these people are if you have detailed records of the family around the time of John Bradley's death.
I believe the 1911 Census is searchable online at the National Library of Ireland website

BALLARD
McDONALD  Michael and Mary, Patrick, Edward, Mary, James, Joseph, Peter, Kathleen, Vincent (ex army)

BALLYCOWAN
McDONALD  Catherine, Patrick, Terence, Mary

KILLEIGH
McDONALD  James and Elizabeth (sub-postmaster)

LYNALLY GLEBE
McDONALD  James and Sarah, Anne, Edward, William Murphy

NEWTOWN
McDONALD  James and Mary, William, Bridget

PUTTAGHAN
DIXON  Mary, Michael, Patrick, Ellen

And here is the 1854 Griffith's Valuation if you don't have it...

Dixon   John    Erry Mary Borough   Kilbride   Offaly
Dixon   James   Town of Clara           Kilbride   Offaly

No "MacDonald" but any of these could easily be a mis-spelling as you can see there is a Terence "McDonnell" in Ballycowan here just like the Terence "McDonald" listed above in Ballycowan.

Mc Donnell        Bernard   Lower Barrack Street,Tullamore                 
Mc Donnell        Bridget     Tullamore                                   
Mc Donnell        Charles     Tullamore Charles Street 
Mc Donnell        James                Clonminch
Mc Donnell        Mary Anne            High Street,Tullamore                       
Mc Donnell        Mrs. Anne            Tullamore Church Street                     
Mc Donnell        Patrick              Ballycowan 
Mc Donnell        Patrick              Tullamore Charles Street                     
Mc Donnell        Roger                Srah
Mc Donnell        Rose                 Bridge Lane,Tullamore 
Mc Donnell        Terence              Ballycowan 
Mc Donnell        William              River Street,Town of Clara                   

Bradley           Andrew            Chapel Street,Tullamore                     
Bradley           John                 Town of Tullamore (Part of)
Bradly            John                  Tullamore

Just curious, who published your History of Tullamore book?  It seems like it would be an interesting read.  I have "Exploring Family Origins in Tullamore Town" which has this listed 1901 census and a few commercial directories.
It's good to start the search again fresh after a long break, I've "thrown in the towel" more than a few times.  As time goes on, more and more information becomes available through the internet.

I found a possible ancestor through army lists:
Henry McLane was a Chaplain in the Royal Artillery beginning 1 Feb 1812 and went on half-pay in 1830.

I was wondering if there were any other resources I could find other than going to Kew (which would be tough since I'm in N.Y.).  I found lists of officers in the Royal Artillery but it doesn't include Chaplains.

Would I be correct in assuming he had held some other rank before being a chaplain? or would've gone through an academy or schooling at church?

The census exists in a volume of the periodical "The Irish Ancestor" in the NYC Public Library (only half of it survives). It is actually called "Early 19th Century Lists of Protestant Parishioners in the Diocese of Meath"  I found some of it online here it must be pretty recent...

Early 19th Century Lists of Protestant Parishoners in the Diocese of Meath. Rev. C.C. Ellison, Irish Ancestor, 1973, Vol. V, No. 1, pp. 37-52.
This also exists in the Church of Ireland RCB Library.

http://www.from-ireland.net/meath/meath1802.htm

This is only half online, as the last of it was covered in pages 113-125 (which included King's Co).  I made a copy of some pages where I found names I was looking for but unfortunately not all of it which I should have.

I believe I have most of Tullamore-Kilbride if anyone would like to request a search

Not a problem at all Linda, glad to help.  I've come across some pretty sad stories in my research as well.  We'll probably never know the full stories, but hard times is what pushed alot of men without any money to move their families, to go out and find work, alot of them never returning home, or finding themselves in other circumstances.
My family is mostly Irish catholic and when I found an ancestor who was in a "loyalist" militia that helped put down the 1798 rebellion in Wexford, I felt very ashamed.  But remember we can't judge anyone's circumstances and actions of 200 years ago on standards of today.  Just be proud their story can be told.