Are you sure his name was James? there is a WILLIAM MARSHALL died Nov. 20, 1927 Dunnville, ON
Ontario, Canada, Deaths, 1869-1938 and Deaths Overseas, 1939-1947 about William Marshall Name: William Marshall Death Date: 20 Nov 1927 Death County or District: Wentworth Age: 74 Gender: Male Estimated Birth Year: abt 1853 Birth Location: Dunn Twp Haldimand
Image shows: He died in the Ontario Hospital He was a farmer aged 74 years 5 months 6 days Born June 14, 1853 Dunn Twp., Haldimand Father - Henry Marshall, born ireland Mother - Margaret Informant: son W.A. Marshall, 1054 Wilmott St., Niagara Falls, ON Cause of death exhaustion of senile psychosis Burial: 8th Cayuga Twp. Haldimand Co. *****************
So his birth in 1853 was too early to be included in ON birth database which starts at 1869.
This is a possible marriage for him - mother shown as Mary, but I have an ancestor who went by both Mary and Margaret so may be same case here
Ontario, Canada Marriages, 1801-1928 about William Marshall Name: William Marshall Birth Place: Canada Age: 23 Estimated Birth Year: abt 1854 Father Name: Henry Marshall Mother Name: Mary Marshall Spouse Name: Jane King Spouse's Age: 23 Spouse Birth Place: Canada Spouse Father Name: Joseph King Spouse Mother Name: Mary Ann King Marriage Date: 11 Jun 1877 Marriage County or District: Haldimand
AND I am guessing this may be his father's death
Ontario, Canada, Deaths, 1869-1938 and Deaths Overseas, 1939-1947 about Henry Marshall Name: Henry Marshall Death Date: 30 Jun 1882 Death County or District: Haldimand Age: 71 Gender: Male Estimated Birth Year: abt 1811 Birth Location: Tyr, Ireland
Image shows he was a farmer Cause of death - cancer of liver and stomach, about 1 year
and two possibles for Henry's wife
Ontario, Canada, Deaths, 1869-1938 and Deaths Overseas, 1939-1947 about Mrs Mary Marshall Name: Mrs Mary Marshall Death Date: 19 Aug 1885 Death County or District: Haldimand Age: 59 Gender: Female Estimated Birth Year: abt 1826 Birth Location: Ireland
It says: occupation: wife (so as she died after Henry she may not be right one, although perhaps they just showed her occupation as wife even though he had died before her
Ontario, Canada, Deaths, 1869-1938 and Deaths Overseas, 1939-1947 about Margaret Marshall Name: Margaret Marshall Death Date: 23 Aug 1886 Death County or District: Haldimand Age: 76 Gender: Female Estimated Birth Year: abt 1810 Birth Location: Scotland
She also is listed as a wife, so who knows Informant is Henderson Marshall, but no relationship shown cause of death - general debiliity, about 6 months she died of twelve months wasting away
So I went to 1871 census to see how the family is listed (let me know if you want that info) Henry is 60, Mary is 45 which puts her right age to be the Mrs. mary Marshall death above.
Your James T. Marshall was born about 1849 Indiana and I have not been able to find a connection to this family, at least not yet.