In loving memory of
Born January 23rd, 1821
Died September 23rd, 1894
Beloved wife of the above
Born May 5th, 1832
Died December 2nd, 1905
Mary their daughter
died May 21st 1859
aged 1 year 10 months
John is my great-great-great uncle. He was the middle of child of James Hardy Johnston and Margaret Byres. John was born in Annan, Dumfries, Scotland. He was baptized 31 January 1821.  He died 23 September 1894 from heart disease. 
Jane Sommerville was the daughter of John and Catherine Sommerville. She was born in Lanarkshire, Scotland.  She died in the Town of Uxbridge on 2 December 1905 from a paralytic stroke. 
Their young daughter, Mary, was only 1 year 10 months old when she died 21 May 1859  from whooping cough.  She was baptized 20 July 1857. 
 Church of Scotland. Parish Church of Annan (Dumfrieshire), Parish Registers for 1703 - 1855, Annan Parish Register microfilm #102307, Family History Library, Salt Lake City.
 John Johnston Ontario death registration #012863 (4 October 1894); digital image, Ancestry.ca (http://www.ancestry.ca ; accessed 29 September 2009), citing microfilm MS 935 Reel 72, Archives of Ontario, Toronto
 Helen Johnston, "Descendants of James Hardy Johnston 1788-1872 and Margaret (Byers) Johnston 1793-1866 of Annan Scotland and Quaker Hill". (Queensville, ON : H. Johnston, 1979-1984.), p. 16. (viewed at the Uxbridge-Scott Museum) [handwritten history]
 Jane Johnston Ontario death registration #021118 (2 December 1905); digital image, Ancestry.ca (http://www.ancestry.ca ; accessed 29 September 2009), citing microfilm MS 935 Reel 122, Archives of Ontario, Toronto.
 tombstone inscription, St. Andrew's Scotch Kirk Cemetery, Quaker Hill, Uxbridge Township, Ontario County, Ontario
 Helen Johnston, "Descendants of James Hardy Johnston 1788-1872 and Margaret (Byers) Johnston 1793-1866 of Annan Scotland and Quaker Hill", p. 26
 Mary Johnston record of birth and baptisms Quaker Hill Presbyterian Church (photocopy) viewed at Uxbridge-Scott Museum.
Note: Byers or Byres for Margaret Johnston's maiden name.