Dorothy was married to Donald James Davis. By the time of the 1930 Census in Great Falls, Montana (below), Ruth A. Dawson (Dorothy's mother, maiden name Ruth A. Noble) was divorced from Elmer Dawson (Dorothy's father) and living with her three children in the household of her parents, Robert Baxter Kerr Noble and Charlotte ('Lottie') Emily (maiden name Johnson) Noble, in Great Falls, Cascade County, Montana. Ruth later remarried Ralph H. Barnes and Ralph adopted Dorothy, making her adoptive name Dorothy Barnes, and their family lived in Bayside, Humboldt County, California.
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Ruth A. Noble
mentioned in the record of Elmer Dawson
Name: Ruth A. Noble
Age: 21y
Birthplace: Montana
Gender: Female
Father: R. B. Noble
Mother: Lottie Johnson
Husband: Elmer Dawson
Other information in the record of Elmer Dawson
from Montana, County Marriages
Name: Elmer Dawson
Event Type: Intended Marriage
Event Date: 29 Aug 1917
Event Place: Cascade County, , Montana
Age: 23
Marital Status: Single
Race: White
Birthplace: Michigan
Birth Year (Estimated): 1894
Father's Name: John E. Dawson
Mother's Name: Allie L. Fredwell
Spouse's Name: Ruth A. Noble
Spouse's Age: 21
Spouse's Marital Status: Single
Spouse's Race: White
Spouse's Birthplace: Montana
Spouse's Birth Year (Estimated): 1896
Spouse's Father's Name: R. B. Noble
Spouse's Mother's Name: Lottie Johnson
Reference ID: cn 8551 , GS Film number: 1940167 , Digital Folder Number: 4351410 , Image Number: 712
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United States Census, 1920
Name: Dorathy Dawson [Dorothy is correct]
Event Type: Census
Event Year: 1920
Event Place: Great Falls Ward 4, Cascade, Montana, US
Gender: Female
Age: 1
Marital Status: Single
Race: White
Relationship to Head of Household: Daughter
Birth Year (Estimated): 1919
Birthplace: Montana
Father's Birthplace: Michigan
Mother's Birthplace: Montana
Household Role Gender Age Birthplace
Elmer E Dawson Head M 26 Michigan
Ruth Dawson Wife F 23 Montana
Dorathy Dawson Dau F 1 Montana <<
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United States Census, 1930
Name: Dorothy Dawson
Event Type: Census
Event Year: 1930
Event Place: Great Falls, Cascade, Montana, US
Gender: Female
Age: 12
Marital Status: Single
Race: White
Relationship to Head of Household: Granddaughter
Birth Year (Estimated): 1918
Birthplace: Montana
Father's Birthplace: Montana
Mother's Birthplace: Michigan
Household Role Gender Age Birthplace
Robert B Noble Head M 55 Canada
Lottie E Noble Wife F 51 Minnesota [maiden name Johnson]
Robert Noble Son M 23 Montana
Frederick Noble Son M 20 Montana
John Noble Son M 18 Montana
Jane Noble Dau F 13 Montana
Ruth Dawson Dau F 33 Montana
Dorothy Dawson Grnddau F 12 Montana <<
Margery Dawson Grnddau F 10 Montana
Bradley Dawson Grndson M 8 Montana
Dorothy Scott Dau F 31 Montana
Robert Scott Grandson M 3 Montana
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United States Census, 1940
Name: Dorothy A Barnes
Event Type: Census
Event Date: 1940
Event Place: Union Judicial Township, Humboldt, CA
Gender: Female
Age: 21
Marital Status: Single
Race: White
Relationship to Head of Household: Daughter
Birthplace: Montana
Birth Year (Estimated): 1919
Last Place of Residence: Same House
Household Role Gender Age Birthplace
Ralph H Barnes Head M 47 Nebraska
Ruth N Barnes Wife F 43 Montana
Dorothy A Barnes Dau F 21 Montana <<
Margery R Barnes Dau F 20 Montana
James R Barnes Son M 3 California
~~~~~~
Sources:
1) "Montana, County Marriages, 1865-1950," (https://familysearch.org/pal:/MM9.1.1/F336-49Z Oct 2014), Ruth A. Noble in entry for Elmer Dawson, 29 Aug 1917; cn 8551, Cascade County, , Montana; FHL microfilm 1940167.
2) "US Census, 1920," (https://familysearch.org/pal:/MM9.1.1/M83J-724 Oct 2014), Dorathy Dawson in household of Elmer E Dawson, Great Falls Ward 4, Cascade, Montana, US, district 27, sheet 6A, family 117, NARA microfilm publication T625, FHL microfilm 1820968.
3) "US Census, 1930," (https://familysearch.org/pal:/MM9.1.1/XCMN-DWD Oct 2014), Dorothy Dawson in household of Robert B Noble, Great Falls, Cascade, Montana, US; district 0019, sheet 7A, family 100, NARA microfilm publication T626, roll 1253.
4) "US Census, 1940," (https://familysearch.org/pal:/MM9.1.1/K9QT-PBT Oct 2014), Dorothy A Barnes in household of Ralph H Barnes, Union Judicial Township, Humboldt, CA, US, district 12-54, sheet 12B, family 260, NARA digital publication of T627, roll 208.