Excerpts from e-mails from David Irwin:

Once, in a small community called Cavey Townland, just outside of Ballygawley, North Ireland lived 13 families.
Some names were  McRory,  Irwin, Moore, and Bell.
These names were all related to one another.
Irwin's came to Hagerman township.  One wonders if in the distant past the Irwin's. Bell's and Moore's of Hagerman/Mckellar were all related back in Ireland.

I do not know if any Moore's from Cavey Townland moved to McKellar.  I do know that Irwin's did.  The last of my line in McKellar are the families of John and George Moffat . ( My 1st cousins.)  I do not know that I am personally related to a Moore.  I know that an Elizabeth Moore was the 2nd wife of my great great grandfather James Irwin. I know not who her relatives were.  Ann McCroury was his first wife.  ( I am strongly suspicious that her last name may be more correctly spelled McRory)  There was more than one James Irwin living in Cavey Townland at the time.  Two were of an age to have possibly been my great great grandfather.  It seems far more likely that the older of these two ( Husband of Elizabeth Moore) actually was my great great grandfather.   It is not possible to be 100% sure which was directly in my line.  These two men lived accross the road from one another and were related to one another.  One became  known as James the Red, the other as James the Black.   James the Black was a blacksmith and a farmer.   I used to be able to grow a RED beard.   Probably so could have James the Red.   It is not known by me why he was known as James the Red.
My mother (not an Irwin by birth) informed me that my   great grandparents were from Ballygawley and Aughnacloy.  These two communities are about 6 miles apart.  Aughnacloy being more southerly.

Cavey Townland is  about 1.5 miles north of Ballygawley, N. Ireland.   Main street in Aughnacloy is known as Moore Rd.  (likely named for Acheson Moore, who may have been a founder of the  community.  He was at least an important man within Aughnacloy.)   In such a short distance, it is possible Acheson Moore was related to my Elizabeth Moore of Cavey Townland who was married to James the Red Irwin.).
 
I have never been able to learn precisely who my Moore family is.
Below is the website for Griffith's valuation.....   and a list of the 13 families in Cavey townland.

http://www.askaboutireland.ie/griffith-valuation/index.xml?action=placeSearch

MACRORY 	MARY 	TYRONE 	ERRIGAL   KEEROGUE 				
DONAGHY 	HENRY 	TYRONE 	ERRIGAL   KEEROGUE 				
MCANASPIE 	JAMES 	TYRONE 	ERRIGAL   KEEROGUE 				
HOPPER 	ANDREW 	TYRONE 	ERRIGAL   KEEROGUE 				
YOUNG 	SAMUEL 	TYRONE 	ERRIGAL   KEEROGUE 				
CONDY 	ELIZABETH 	TYRONE 	ERRIGAL   KEEROGUE 				
BELL 	NEAL 	TYRONE 	ERRIGAL   KEEROGUE 				
IRWIN 	ARCHIBALD 	TYRONE 	ERRIGAL   KEEROGUE 				
IRWIN 	JAMES 	TYRONE 	ERRIGAL   KEEROGUE 				
MOORE 	JAMES 	TYRONE 	ERRIGAL   KEEROGUE 				
IRWIN 	JAMES 	TYRONE 	ERRIGAL   KEEROGUE 				
IRWIN 	MARTHA 	TYRONE 	ERRIGAL   KEEROGUE 				
GILLESPIE 	THOMAS 	TYRONE 	ERRIGAL   KEEROGUE 				

Neal Bell held the area designated as 5 on the maps of Cavey.  This made him next door neighbour to James the Black Irwin and to James the Red's brother Archibald Irwin.

James Moore held the farm on the map marked as 8.  This places him squarely between parts of James the Black's farm and directly across the road from James the Red Irwin and his wife Elizabeth Moore.  It is not known if these two Moore's are related, but it seems likely that they are.

People who study the genetic code of families suggested that there are 3 Irwin branches.  One of the Irwin branches is listed as the Irwin- Bell branch.  The Irwin family is of scottish descent and were planted in Ireland by the British to get them off the border lands between Scotland and England.

We are known as Scotts Irish.   The Mary McRory family lived in the far north of the townland, the Irwin's in the south.  It seems likely that Ann McCroury would be a relative of Mary McRory.
Two more Moore families lived outside of Cavey in opposite directions, but both within 1 mile of the Irwin households.
Another sibling of my great grandfather Thomas Irwin married a Rooney..  Thomas himself married Isabella Givens of Millix Townland... 4 townlands away, but still within 2 miles of the Irwin households.
 
Isabella's Brother George Givens raised his family on lot 21 and 22 (concession 3, I think) in Hagerman Township.   Isabella and Thomas came to the area from Creemore and bought lots 18 and 19 (just east of,  but not quite touching, Fairholme Lake).  They later moved to lots 23 and 24.  I am suspicious that the family also owned lot 20, but I am not sure of that.

Lauri Heideman found the following information in Parry Sound.

Today while at the Parry Sound Registry Office I did a title search on Lots 18 & 19, Conc. III, Hagerman Township where Thomas & Isabella settled.

18 June 1872 - Thomas & Isabella entered into a contract to sell all trees (except Pine & Cedar) to William Beatty once they obtained a Patent for the lands
1876 - Sold the timber to the Parry Sound Lumber Company for $130 - Thomas made his mark on the contract, but Isabella actually signed it.
7 Sept 1881 - Thomas & Isabella mortgaged the lands for $250.

It appears these lands may have remained in the Irwin family until the late 20th century.

Laurie Heideman

Samuel Irwin came into possession of the east side of Manson Lake probably in the 1920's.   This property, previously owned by the John Gardiner family and later their son Jack Gardiner, probably originally held the School house on the Balsam Road.   My mother, Iva White and at least one of her sisters (Esther ( White) Kirkham of Kirkham Rd. in Waubamic were teachers at the school.   Both  my great Aunts Margaret and Esther Gardiner (of Gardiner(Manson) Lake) were  also teachers in the Balsam school.   My father Francis( Frank) Irwin, and later his brother Herman, owned the property  on the corner across from the Balsam School.  Mother referred to Balsam as Balsam Grove.  I have seen no records that would prove that Balsam was ever Balsam Grove.

The property across the road from, and at the head of, Squaw  Lake in McKellar township was once owned by my uncle Charles Irwin and later his brother and my father Francis (Frank) Irwin.  ( Modern maps appear to call this Lake Moffat Lake to-day) Samuel Irwin, my grandfather once lived on Tait's Island In McKellar Township.   The property was on the south shore of the island very close to the bridge.  The house was destroyed by fire My father Francis Irwin was  born on Tait's Island.   It is not known by me if his brother Charles Irwin was born on Tait's Island, or in Balsam.  My father was therefore twice a resident of McKellar Township.  

Of other interest is the Battle of the Diamond 1796... a very small skimish between Catholic "Defenders" and the protestant "Orange Boys".  Cavey is in County Tyrone.  The Battle of the Diamond  took place in  neighbouring county Armagh.   It is said that many of the protestant fighters at this battle were "mountain men" from Ballygawley in County Tyrone.   Cavey Townland is hilly country ( mountains?) just outside of Ballygawly.  
This suggests that  the battle was fought by members of my family.
It is also said that the last catholics to arrive at the battle were from County Tyrone.  This suggests that a large part of fighters at the battle were likey neighbours from the Ballygawley area.   

When the battle was over, the protestant group felt that they needed an organization to protect them from the Catholic Organization called the Defenders.  They gathered at the Dan Winters farm on the edge of the battle site and when they emerged they had formed the now infamous Orange Order (Orange Lodge).

My father Frank Irwin had a farm before moving into the farm across the road from the Balsam School.    He had been working at the Samuel Jackson Farm putting in the crop.   Samuel Jackson died in June of 1933.  Shortly thereafter, Frank took over the Samuel Jackson Farm.  It was at this farm that his sister Esther (Moffat) Irwin came to live with him.  This was the farm that was later owned by Sammy McEwan.
 
      I have a strong memory of helping Frankie and Myrtle Moffat with their threshing one year.  I was yet a lad.  Theirs was a  farm on the west side of Manson Lake.  I recall the beautiful view across Manson Lake from a gorgeous field of stooked grain.  I also remember a large group of workers filing into the Moffat home for dinner.  The Moffatt ladies had put all the extensions into all available tables in their very large kitchen.  All the men and I were able to be seated at the table for a tremendous and delicious spread of food that the ladies put on to feed their worker neighbours.