My 3x great grandfather, Daniel McLaughlin m. Jane McCauley (b. ca. 1794, Ireland) and died in Camden in August 1858. Jane died in July 1872. They had six children in Ontario that I know of: Margaret, born Nov. 1822 in Bath, Ontario, who married John McKeown, had 7 children, and died 1902 in Richmond Township, Hastings County, Ontario; John, b. ca. 1829; Mary Jane b. ca. 1832; Daniel b. April 1835; Dennis who married Mary Ann Reynolds in 1849 in Centreville, Ontario and had at least one child, Elizabeth b.Dec. 1850 in Camden, Ontario; and William who married Margaret Lappan in 1849 and had at least one child, Elizabeth, born 1849.
I do not know where Daniel and Jane married or when they came to Canada, or even where they came from. I have searched land records, census records, ships lists, and church records. Any suggestions welcome.