Just noticed your posting looking for information on the McCabes and Maguires.
my husbands gr gr. aunt CATHERINE O'NEILL married THOMAS MC CABE OF OPS
TOWNSHIIP MAY 14, 1876.
Thomas McCabe came to Canada on the ship John Bright from Liverpool to NY. USA.
MAY 1861 AT AGE 16. Probably Monaghan Ireland
looks like his parents were FRANCIS MC CABE born 1805 died 1892, Margaret Martin
born 1815 died 1887. Not sure if they were in Canada
I use ANCESTRY.CA and have found a lot of stuff there.
As for the Maguires, as I was married to your Uncle Milford a long time ago I remember
visiting a very old JOHN MAGUIRE at Haliburton. Not sure where the connection to Howard
Maguire was. I do think they lived around Cavan or that area before going to Haliburton.
Hope this helps.