William Jonathan Blackley
- Born: 6 Jan 1839, Bluntisham, Huntingdonshire, England
- Marriage: Harriet Newell Griswold on 2 Jan 1861 in Albion, Orleans, NY
- Died: 22 Feb 1906, Lockport, NY at age 67
- Buried: Glenwood Cemetary, Lockport, NY
Noted events in his life were:
• Occupation: Contractor and Builder.
William married Harriet Newell Griswold, daughter of Arunah Wheeler Griswold and Martha Sabrine Plumley, on 2 Jan 1861 in Albion, Orleans, NY. (Harriet Newell Griswold was born on 2 Jan 1838 in Middleport, NY, died on 29 Jun 1922 in Lockport, NY and was buried in Glenwood Cemetary, Lockport, NY.)