Children of:
George McWillam (1822-1900) & Mary Buchanan (1820-1907)

1. Alexander William (1844-aft. 1901)
2. George Irvine (1845-1874) (killed by a train)(
3. Susan/Susanna Jane (1847-Unkn.) (m. Ambrose Kinley Currie)
4. Henry Gordon (1849-Unkn.)
5. Mary Isabella (1851-1852)
6. James Arthur (1853-1887; died in Petitcodiac of consumption) m. Christiana McFee
7. Ann Isabella (1856-1884) m. Frederick Simpson
8. Wilson (Albert) (1858-1924)
9. Mary Angelina (1860-1929) m. Joseph A. Marshman
10. Frances Emmaline (1862-1866)
11. Alberta Victoria (1865-Unkn.)

1881 Census (www.familysearch.org) lists him as Baptist as well, wife as Presbyterian:

Household:

Name Marital Status Gender Ethnic Origin Age Birthplace Occupation Religion
George MCWILLIAM M Male Scottish 60 New Brunswick Carpenter Baptist
Mary MCWILLIAM M Female Scottish 60 New Brunswick Presbyterian
James MCWILLIAM Male Scottish 27 New Brunswick Carpenter Presbyterian
Albert MCWILLIAM Male Scottish 22 New Brunswick Carpenter Presbyterian
Annie MCWILLIAM Female Scottish 16 New Brunswick Presbyterian
John MCWILLIAM Male Scottish 58 New Brunswick Carpenter Presbyterian