I've ruled out Native American ancestry through Grace Dillon's maternal grandmother, Elizabeth Marcia Woodland. I will do a separate post for her maternal grandfather, Robert Wilson Corrigan. This post will focus on the individuals in bold text below.
Parents of Grace Laponsie Dillon: Lou Laponsie &
Carol Marcia CorriganMaternal Grandparents of Grace Laponsie Dillon: Robert Wilson Corrigan &
Elizabeth Marcia WoodlandMaternal Great Grandparents of Grace Laponsie Dillon:
William J Woodland & Mary Margaret (Minnie) WilcoxsonMaternal Great Great Grandparents of Grace Laponsie Dillon:
Joshua Woodland (IRELAND) & Sarah Wilson (IRELAND)Maternal Great Great Grandparents of Grace Laponsie Dillon:
William H Wilcoxson & Elizabeth Allen (SCOTLAND) Maternal Great Great Great Grandparents of Grace Laponsie Dillon:
Thomas Wilcoxson (England) & Elizabeth (Eliza) Pegg (No Native Ancestry Found)
The link and quoted text below are from an obituary for Grace Dillon's maternal grandmother, Elizabeth Marcia Woodland Corrigan Ewald. It connects Grace Laponsie Dillon to her parents, Lou Laponsie and Carol Marcia Corrigan Laponsie.
Obituary for Elizabeth Marcia "Betty" Ewald (Elizabeth Marcia Woodland)
ELIZABETH “BETTY” MARCIA EWALD, 100, of Cass City, died Sunday, October 31, 2010 in Timberline Lodge Adult Foster Care Home, Caro. She was born October 7, 1910 in Saginaw to William John and Mary Margaret (Wilcoxson) Woodland. She married Robert W. Corrigan in 1934. He died in 1982. She later married Clarence W. Ewald December 29, 1984 in Cass City. He died June 22, 1995.
Betty attended Saginaw Business School after High School. She was a member of the Cass City First Baptist Church. She was formerly the Executive Secretary of the American Cancer Society, St. Joseph County Chapter. Betty worked for the telephone company and for Consumers Power in Saginaw. She loved to read, refinish furniture, and she wrote poetry. Betty had a keen interest in Missionary work. She also enjoyed playing the piano and gardening.
Betty is survived by her children: Carol (Lou) LaPonsie of Cass City, Robert W. Corrigan II of Norway, MI. She was blessed with 12 grandchildren: Robert (Katherine) Corrigan III, Keith Corrigan, Scott Corrigan, Colleen (Scott) Duncan, Daniel LaPonsie, Philip (Roberta) LaPonsie, Aaron (Kathy) LaPonsie, Grace (Tracy) Dillon, Faith LaPonsie, Hope (Steven) Winterhalter, Joy (John) Montei; 24 great grandchildren; 11 great great grandchildren; stepchildren and their families: Ruth (Ron) Bullis of Grand Rapids, William (Jean) Ewald of Cass City, Phyllis (Tom) Montgomery of PA. She is preceded in death by her grandson, Thad Corrigan; sisters: Helen Hope Woodland and Irene Munro.
Funeral service held 11:00 a.m. Saturday, November 6, 2010 in Kranz Funeral Home, Cass City with Pastor David Hill of Cass City First Baptist Church officiating. Interment will be in Forest Lawn Cemetery, Saginaw. Pallbearers for Mrs. Ewald will be her grandsons: Robert Corrigan III, Keith Corrigan, Scott Corrigan, Daniel LaPonsie, Philip LaPonsie, and Aaron LaPonsie. Memorials may be made to Cass City First Baptist Church. Family and friends may share memories, prayers and stories with the family at www.kranzfuneralhome.com.
Source:https://memorials.kranzfuneralhome.com/Ewald-Elizabeth/582038/obituary.php
Mother of Grace Dillon – Carol Marcia Corrigan Laponsie1940 United States Federal CensusName: Carol M Corrigan - Age 5
Estimated Birth Year: 1935
Gender: Female
Race: WhiteBirthplace: Michigan
Marital Status: Single
Relation to Head of House: Daughter
Home in 1940: Saginaw, Saginaw, Michigan
Household members
Elizabeth Corrigan Age 29
Robert W Corrigan Age 28
Carol M Corrigan Age 5
Robert W Corrigan Age 1
Maternal Grandmother of Grace Dillon – Elizabeth Marcia Woodland Corrigan Ewald1920 United States Federal CensusName: Elizabeth Woodland - Age 9
Birth Year: 1911
Birthplace: Michigan
Home in 1920: Saginaw Ward 4, Saginaw, Michigan
Race: WhiteGender: Female
Relation to Head of House: Daughter
Marital Status: Single
Father's Name: William Woodland
Father's Birthplace: Canada
Mother's Name: Minnie Woodland
Mother's Birthplace: Canada
Household Members
William Woodland Age 53
Minnie Woodland Age 54
Elizabeth Woodland Age 9
Elizabeth Willcoxson Age 80
Maternal Great Grandfather of Grace Dillon – William J Woodland1900 United States Federal CensusName: William Woodland Age 34
Birth Date: Dec 1865
Birthplace: Canada
Home in 1900: Saginaw Ward 1, Saginaw, Michigan
Race: WhiteGender: Male
Immigration Year: 1887
Relation to Head of House: Head
Marital Status: Married
Spouse's Name: Minnie Woodland
Marriage Year: 1886
Years Married: 14
Father's Birthplace: Ireland
Mother's Birthplace: IrelandYears in US: 13
Naturalization: Naturalized
Occupation: Freight Checker
Household members
William Woodland Age 34
Minnie Woodland Age 34
Irene Woodland Age 12
Nellie Woodland Age 6
Maternal Great Great Grandfather of Grace Dillon – Joshua Woodland1871 Census of CanadaName: Joshua Woodland
Gender: Male
Marital Status: Married
Origin: IrishAge: 45
Birth Date: 1826
Birth Place: IrelandResidence Place: Glenelg, Grey South, Ontario
Religion: Weslyan Methodist
Occupation: Merchant
Household members
Hannah Wilson Age 87
Joshua Woodland Age 45
Sarah Woodland Age 32
Joshua Woodland Age 18
Ellen Woodland Age 16
George Woodland Age 15
Eliza Woodland Age 12
Sarah H Woodland Age 5
Wm J Woodland Age 3
Maternal Great Great Grandmother of Grace Dillon – Sarah Wilson Woodland1871 Census of CanadaName: Sarah Woodland
Gender: Female
Marital Status: Married
Origin: IrishAge: 32
Birth Date: 1839
Birth Place: IrelandResidence Place: Glenelg, Grey South, Ontario
Maternal Great Grandmother of Grace Dillon – Mary Margaret Wilcoxson Woodland (Minnie)1920 United States Federal CensusName: Minnie Woodland - Age 54
Birth Year: 1866
Birthplace: Canada
Home in 1920: Saginaw Ward 4, Saginaw, Michigan
Race: WhiteGender: Female
Immigration Year: 1887
Relation to Head of House: Wife
Marital Status: Married
Spouse's Name: William Woodland
Father's Birthplace: Canada
Mother's Name: Elizabeth Willcoxson
Mother's Birthplace: ScotlandNative Tongue: English
Naturalization Status: Naturalized
Household Members
William Woodland Age 53
Minnie Woodland Age 54
Elizabeth Woodland Age 9
Elizabeth Willcoxson Age 80
Great Great Grandfather of Grace Dillon – William H WilcoxsonMichigan U.S. Death & Burials IndexName: William Henry Wilcoxson
Birth Date: 1829
Birth Place: Canada
Death Date: 8 May 1904
Death Place: Saginaw, Saginaw, Michigan
Burial Date: 11 May 1904
Cemetery Name: Forest Lawn
Death Age: 75
Occupation: Farmer
Race: White
Marital Status: Married
Gender: Male
Father Name: Thomas Wilcoxson
Father Birth Place: EnglandMother Name: Eliza Pegg
Mother Birth Place: Canada
Great Great Great Grandmother of Grace Dillon – Elizabeth (Eliza) Pegg Wilcoxson Born – 1808 Ontario, Canada
Died – 1892 Ontario, Canada
Source: 1851, 1861, 1871, 1881, 1891 Census of Canada
I’m unable to identity parents for Elizabeth (Eliza) Pegg, but she is highly unlikely to have Anishinaabe or Metis ancestry. The 1891 Census of Canada lists both of Elizabeth Pegg's parents as born in the USA. Religion is identified on every census listed above as Church of England. Based on this information, in my opinion, it is most likely that Elizabeth Pegg's parents were English and moved to Canada after the Revolutionary War.