Hello Valerie,
I'm not surprised you have many Mowats named George and John - very popular! Here are mine:

George Mowat
b 1822 Caithness, Scotland
d 11 Sep 1902 Croton Township, Newaygo County, Michigan, USA

His sons named George and John:

George Mowat, Jr.
b 14 Dec 1842 Ontario Province, Canada
d 22 Sep 1904 St. Johns, Clinton County, Michigan, USA

John Mowat
b 20 Dec 1850 State of Michigan, USA
d 12 Jul 1936 Greenville, Montcalm County, Michigan, USA

If any of these match yours, I have more information.

Best regards,
Jane Schapka