LDS IGI record indicates that William died in Tasmania, Australia in 1833. However, reliable Canadian records show that William Boxall of Tillington and wife, Harriet, immigrated to Canada and died in Oxford County.
William married Harriet HALL, daughter of William HALL and Sarah UNKNOWN, on 30 May 1816 in Tillington, Sussex County, England.1 (Harriet HALL was born in Apr 1786 in Sussex County, England, christened on 4 Apr 1786 in Patching, Sussex County, England,6 died after 1861 in prob. North Oxford, Oxford County, Ontario, Canada and was buried in Hillview Cemetery, Woodstock, Oxford County, Ontario.)
1 Sussex County Parish Records - marriage (familysearch.org). Surety: 2. Records marriage of William Boxall of Tillington to Harriet Hall of Tillington, on 30 May 1816 in Tillington, Sussex County, England.
Ontario Marriage Index, 1858-1899 (Woodstock, Oxford County, Ontario, Canada). Surety: 4. Name: William Boxall
Birth Place: England
Residence: West Oxford Township
Father Name: William
Mother Name: Harriet
Estimated Birth Year: 1833
Spouse Name: Ellis Swain
Spouse's Age: 22
Spouse Birth Place: Ireland
Spouse Residence: Woodstock
Spouse Estimated Birth Year: 1845
Spouse Father Name: Nicholas
Spouse Mother Name : Elizabeth
Marriage Date: 2 Nov 1867
Marriage County: Oxford
Family History Library Microfilm: 1030062
Cameron, Wendy & Maude, Mary McDougall, The Pentworth Emigration Scheme: A Preliminary List of Emigrants from Sussex and Neighboring Counties in England to Upper Canada, 1832-1837 (Toronto, Ontario: Wordforce 1990, 25p.), p. 3. Surety: 4. Name: William Boxall
Family Members: Wife Harriet; 6 children
Source Publication Code: 1088.10
Primary Immigrant: Boxall, William
Annotation: Date of emigration with intended destination. Spouse and children were assumed by indexers to have accompanied emigrant. Copies of this list can be obtained from Wordforce c/o Wendy Cameron, 305 Heath Street East, Toronto, M4T 1T3 or Mary McDougall Maude.
Ibid. Surety: 3. Name: William Boxall
Year: Aft 1836
Place: Tillington, West Sussex, England
Source: Petworth Emigration Scheme, The: A Preliminary List of Emigrants from Sussex and Neighbouring Counties in England to Upper Canada 1832-1837.
Note: The province and county are associated with the location of the record source and in some cases may not be the same as the place where the event occured.
5 1851 Census of Canada West, New Brunswick and Nova Scotia (Oxford West, Oxford County, Ontario, Canada). Repository: Ancestry. Surety: 4. Lists William Boxall (age 63, b. England), wife Harriet [Hall] (age 55, b. England) and children William (age 19, b. England), John (age 17, b. England) and Gusto (age 12, b. Canada), living in Oxford West, Ontario. Both William Sr. and William Jr. are listed as "yeoman." The family's religion is listed as Episcopalian
6 Sussex County Parish Records - baptism (familysearch.org). Surety: 3. Records baptism of Harriet Hall, daughter of William Hall and Sarah, on 4 Apr 1786 in Patching, Sussex County, England.