| Birth | William McArthur was born in 1824. |
| Marriage | He married Mary Ann Milroy, daughter of James Milroy and Margaret Adair Keachie, on 14 April 1854.
The date for this marriage is provided by the 19 April, 1854, edition of the Dumfries Reformer of Galt. This appeared as a marriage notice. The couple was married by Rev. John Bayne of Galt. This does not tell whether the marriage was held at Galt or in the township at a family residence. |
| Death | He died on 8 April 1903 at North Dumfries Twp., Waterloo Co.. |
| Burial | He was buried at Section 4, Mountview Cemetery, Galt. |
| Note | Death reg. 027047-03 North Dumfries, Waterloo Co.
William McArthur died April 8, 1903, age 79 years. Residence Concession 10, lot 2. Born Waterloo County. Presbyterian. Physician and informant Dr. Adam Thomson. |