Notes:

According to his father's will, William was the oldest Rankin son.

The 1861 census of East Oxford Twp., Oxford County, shows William, age 40, his wife Ann, age 27, their children Margaret, 11, Silvio, 8, and Mary E., 7. Also living with them is William's younger brother, Andrew, age 22, whose occupation is druggist.

William married ANN. was born about 1834; died in UNKNOWN. [Group Sheet] [Family Chart]

Notes:

The death record of William's son John and the burial record of his daughter Isabella stated that they were born in Antrim, Ireland. From this we may infer that the family came from that county.

There are two listings of a William Rankin in the 1828 Tithe Applotment Book in Antrim [PRONI ref. FIN/5/A/134 - in Dunluce Parish, one in Park townland, and the other in Ballyhome townland. A Hugh Rankin and a Thomas Rankin are also listed in Park townland. These tithe applotment records list no Mahaffeys. Dunluce Parish contains the spectacular ruins of Dunluce Castle situated on a rocky promentory overlooking the Atlantic Ocean.

The 1796 flaxgrowers bounty list includes: a Hugh Rankin in Ballyrashean Parish, 2 James Rankins in Dunluce Parish, a Thomas Rankin in Ballyrashean Parish and a William Rankin in Derrykeighan Parish.

1824-1827 Vestry minutes of the Church of Ireland parish of Dunluce, held in PRONI [MIC/1/90//1] mention a Hugh Rankin as a church warden. The following Rankin baptisms are also mentioned:
Jan. 16, 1814: John, son of James Rankin of Lisales, Billy.
July 7, 1817: Hugh, son of William Rankin of Park Mountain.
July 25, 1822: James, son of William Rankin of Ballyhome.

The 1901 census listing for William's son Abraham states that the family immigrated to Canada in 1842.

According to the biography of Frederic Fortescue Passmore in "Commemorative Biographical Record of the County of York, Ontario: containing biographical sketches of ..", J.H. Beers, Toronto, 1907:

".. Mr. Passmore married Miss Isabella Rankin, who belongs to a family long identified with County York, being a daughter of William and Mary (Mahoffey) Rankin, natives of Ireland, who came to Toronto at an early date, settling on Yonge Street, where Mr. Rankin owned a tract of land, and where both he and Mrs. Rankin died. Of their thirteen children, Mrs. Passmore and her sister Mrs. Cunningham, and one brother, Abraham Rankin, are the only survivors....".

A copy of William Rankin's will, dated Mar. 8, 1848, is among the personal papers of his son-in-law, Frederick Fortecue Passmore. He requested that his possessions and his farm, at Lot 10, Concession 1, in Whitchurch Twp., be sold to pay his debts and funeral expenses. The will lists his wife and his 11 children - William, Robert, James, John, Samuel, Margaret, Isabella, Daniel, George, Mary Ellen and Andrew.

In census and marriage records, many Rankins, probably from several families, were listed in Vaughan, Whitchurch and Markham Townships in York County in the mid-1800s. Among the marriages, with Rankin parents listed as William and Mary were:
John Rankin, b ~ 1824 in Ireland, m. Elizabeth Hope Nov. 26, 1879
Harriet Rankin, b. ~1846 in Canada m. James Cochrane, Aug. 1, 1868
Mary Jane Rankin, b. ~1842 in Ireland m. James Kelly, Jul 18, 1866
Samuel Rankin, b. 1830 in Ireland m. Ellen Sleightholm, Sep 25, 1861
Isabella H. Rankin b. 1833 in Ireland m. Frederick Fortescue Passmore, Aug. 4, 1859

Other Rankin marriages, for which parents were not listed included:
Elizabeth Rankin m. Daniel McPherson Feb. 13, 1834 witnesses: James Rankin and Esther Rankin
James Rankin m. Mary Sweetman Oct 21, 1836
Margaret Rankin m. James Stewart Dec 22, 1846 (1891 census shows her as b. ~1826 in Ireland)

The 1861 census for Whitchurch, York County (which includes upper Yonge Street), includes a Mary Rankin, age 60, widowed, born in Ireland, and living with her daughter Mary, age 22.

William married Mary MAHOFFEY. Mary was born about 1801 in Ireland; died on 11 Aug 1883 in Whitchurch, York Co., Ontario. [Group Sheet] [Family Chart]

Notes:

The maiden name of Isabella's mother comes from the article on Frederick F. Passmore in "Commemorative Biographical record of the County of York, Ontario", 1907. In Isabella's marriage record, her mother's surname is given as McKay.

There is a Mary Rankin listed in the 1853 Toronto tax assessment rolls - owning a 1 3/4 acre property on Queen St. West (west of Denison's Ave.) in St. Patrick's Ward.

The book "Inhabitants of York County, Ontario, 1850", by N.K. Crowder, lists Mrs. Rankin occupying Lot 70 Concession 1 in Whitchurch Township.

The 1861 census for Whitchurch, York County (which includes upper Yonge Street), includes a Mary Rankin, age 60, widowed, born in Ireland, and living with her daughter Mary, age 22.

In the York North 1871 census for the Whitchurch sub-district, there is a Mary Rankin listed, age 70 (b. ~1801), of Irish ethnic origin, Scotch Presbyterian religion. This is the same district as that of her daughter Mary and son-in-law George Cunningham.

The 1881 census for the Whitchurch sub-district of York North shows Mary Rankin, age 82, widow, Presbyterian, born in Ireland.

Mary Mahoffey Rankin died 11 Aug. 1883. Her probated will was as follows:
"I Mary Rankin of the Township of Whitchurch in the County of York, widow of William Rankin formerly of the same place, farmer, deceased, declare this to be my Last Will and Testament, hereby revoking all former wills and testamentary dispositions by me at any time heretofore made.
I devise and bequeath all of my estate real and personal to my son John Rankin of the Township of Trafalgar in the County of Halton his heirs and assigns, my personal estate consisting of some money and securities and household furniture and clothing, and my real estate of one acre of land with buildings thereon erected situate on the southwest corner of Lot number Ten on the east side of Yonge Street, in the Township of Whitchurch aforesaid upon [?] for the purposes following, namely FIRST to specifically divide my household furniture and clothing into six equal shares of as nearly equal value as possible and give one of each share to each of my six children now named, namely to himself, John Rankin, Margaret Stuart, wife of James Stuart of the Township of King, Isabella Passmore, wife of Fortescue [sic] Passmore of Toronto, Abraham Rankin of Barrie, Mary Ellen Cunningham, wife of George Cunningham of Whitchurch and Andrew Rankin whose residence is now unknown. SECOND, as speedily as possible to convert the remainder of my said estate which shall not consist of money, into money and after payment of my debts and general and testamentary expenses, to divide the balance thereof equally amongst my six children just named.
And I direct that if my son Andrew's residence is not certainly made known or came to the knowledge of my son John within three years after my decease, then that immediately after the expiration of such three years his share shall vest in and become the property of the other five of my said six children named and shall thereafter be divided amongst them by my said son John.
AND for the disposition sale or conversion into money of my real estate I give my said son John as full and absolute power and authority as he would have over the same were he the owner thereof in fee simple absolute without encumbrance
AND appoint my said son John Executor of this my will."
Mary X Rankin
(her mark)
The will was dated 15 Feb., 1876, and was witnessed by Joseph Rankin and William Rankin.

The will does not mention William, Samuel, Daniel, George, Robert or James as children of Mary Rankin. The will does mention Abraham, who was not listed in the earlier will of Mary's husband William.

The probate record shows the estate valued at about $169, of which real estate constituted about $100, and the rest personal goods.