From familysearch.org. Seems to confirm that Charles Francis parents are James R Nicholls and Sarah Gillespie. Sarah's birth year is unclear - 1852-1857? Sarah's mother appears to be Margaret, and she is possibly the dau of John and Margaret Gillespie b. IRE in the 1820's from census data in that region. Didn't find any marriage records for James and Sarah.
You might be able to find out more by researching the sibings using the free search tool at: https://familysearch.org/
Do you know the name of Charles F spouse/mother of donald/daniel - that might lead to more? Good Luck
Canada, Births and Baptisms
https://familysearch.org/pal:/MM9.1.1/F2F4-T5J
Charles Francis Nicholls Male
birth 30 Jul 1879 Wellesley, Waterloo, Ont
father James R. Nicholls
mother Sarah Gillespie
indexing project (batch) number: C01225-7
Canada Census, 1881 Wellesley, Waterloo North, Ont
James Nichools M 31y abt 1850 Ont
Sarah Nichools F 29y abt 1852 Ont
William J. Nichools M 4y Ont
Charles F. Nichools M 1y Ont
George Nichools M 26y Ont
SIBLINGS:
Ontario Births with Parents James Nichols Sarah Gillespie
Randolph Stanley Nichols
Birth 24 Nov 1890 Mornington Township, Perth, Ont
Harold Gladstone Nicholls
birth 10 May 1898 Mornington, Perth, Ont
John Walter Nicholls R.
Birth 16 Sep 1883 Wellesley, Waterloo, Ont
Ontario Marriages
Groom Alexander F M Hahn
Age 26 est birth 1885
father: Ferdinand C F Hahn mother: Emma Neumann
Marriage 20 Apr 1911 Brantford, Brant, Ont
spouse: Florence C Nicholls
age 25 est birth 1886
spouse James R Nicholls mother: Sarah Gillespie
Michigan, Marriages
groom Harold G. Nicholls
age 25 years est birth 1898 Ontario
groom Jas. Nicholls mother: Sarah Gillespie
marriage 02 Jul 1923 Port Huron, St Clair, Michigan
bride Flora Mc Kay
age 21 years est birth 1902 Scotland
father John Dockray
Ontario Deaths (? father of Charles)
https://familysearch.org/pal:/MM9.1.1/JDKS-XGQ
James R. Nickolls
Death 08 Aug 1913 Malahide, Elgin, Ont
age 63 est birth 1850
father: Nicholls mother Margaret Thompson
https://familysearch.org/search/records/index#count=20&query=%2Bsurname%3Anicholls~%20%2Bresidence_place%3A%22Mornington%2C%E2%80%8B%20Perth%20North%2C%E2%80%8B%20Ontario%2C%E2%80%8B%20Canada%22~%20%2Bresidence_year%3A1891-1891
Canada Census, 1891Mornington, Perth North, Ont
James Nicholls M 42 1849 Ont
Sara Nicholls F 34 1857 Ont
William Nicholls M 13 1878 Ont
Charles Nicholls M 12 1879 Ont
Frederick Nicholls M 9 1882 Ont
John Nicholls M 7 1884 Ont
Florence Nicholls F 5 1886 Ont
Randolph Nicholls M 5 1886 Ont
Canada Census, 1901, F, Perth (north/nord), Ont
head James Nichols M 51 Ont
wife Sarah Nichols F 44 Ont
son Fred L Nichols M 19 Ont
dau Florence C Nichols F 14 Ont
son Stanley P Nichols M 10 Ont
son Hartsel G Nichols M 2 Ont
mother-in-law Margaret Galisper F 78 Ireland
niece Mude Galisper F 10 Ont
Canada Census, 1871 Mornington, North Perth, Ont ? Possibly Sarah Gillespie above
https://familysearch.org/pal:/MM9.1.1/M43P-3G4
John Gillespie M 50 Ireland
Margaret Gillespie F 50 Ireland
Samuel Gillespie M 25 Ireland
William Gillespie M 21 Ont
Sarah Gillespie F 19 Ont
David Gillespie M 16 Ont
Elizabeth Gillespie F 7 Ont
