MR
Mary Roberts — 1940 US Census Record
Model Tree available1940 United States Federal Census · Spokane-County, Washington
Our Model Tree links this Mary Roberts across the 1920, 1930 and 1940 US Censuses in Spokane-County, Washington (XGBoost, ~Confirmed), with identified parents Morris & Morris — first a daughter (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Female
Daughter
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Spokane-County, Washington |
| Surname | Roberts |
| Given Name | Mary C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Spokane City |
| 1935 Residence (County) | Spokane |
| Additional Details | |
| Occupation | Office Clerk |
| Industry | Hospital Office |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 705 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Office Clerk |
| Township / Ward | Spokane City |
| Est. Birth Year | ~1920 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Marjorie Roberts | Daughter | — | 11 | ~1929 |
| Mary Roberts | Daughter | — | 20 | ~1920 |
| Morris Roberts | Head | — | 58 | ~1882 |
| Catherine Moran | Other | — | 74 | ~1866 |
| John Roberts | Son | — | 17 | ~1923 |
| Thomas Roberts | Son | — | 22 | ~1918 |
| Margaret Roberts | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Spokane, Washington
Daughter, age 1
Spokane, Washington · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roberts |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Wales |
| Mother's Birthplace | Pennsylvania |
| Mother Tongue | Welsh |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Spokane, Washington
Daughter, age 10
Spokane, Washington · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roberts |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Wales |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Spokane-County, Washington
Daughter, age 20
Spokane-County, Washington · implied b. ~1920 — 7 household members
| Surname | Roberts |
| Given Name | Mary C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Spokane City |
| 1935 Residence (County) | Spokane |
| Occupation | Office Clerk |
| Industry | Hospital Office |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 705 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Roberts across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Morris Roberts (~0.92 confidence) and father Morris Roberts (~0.92 confidence) and mother Margaret Roberts (~0.92 confidence) and mother Margaret Roberts (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Morris Roberts
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Morris Roberts
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Margaret Roberts
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Margaret Roberts
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Roberts
Daughter · 1940 · age 20 · b. ~1920 · Washington
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Sibling
Thomas Roberts
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Roberts
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjorie Roberts
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Spokane-County, Washington
Open full size
1940 US Federal Census — Spokane-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04385-00660)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harry C. Firth | 67 | Head | Messenger | New York |
| 2 | Alta I. Firth | 64 | Wife | — | Michigan |
| 3 | George H. Noel | 46 | Head | Insurance | Missouri |
| 4 | Opal D. Noel | 30 | Wife | — | Oklahoma |
| 5 | Isabella Toner | 74 | Head | — | Ireland |
| 6 | Catherine S. Toner | 45 | Daughter | Office Manager | Idaho |
| 7 | James R. Toner | 41 | Son | Bookkeeper | Idaho |
| 8 | Lee P. Salmon | 41 | Head | Bookkeeper | Washington |
| 9 | Clara Salmon | 39 | Wife | — | Washington |
| 10 | Ruth Salmon | 12 | Daughter | — | Washington |
| 11 | Glen Salmon | 9 | Son | — | Washington |
| 12 | Lois Salmon | 2 | Daughter | — | Washington |
| 13 | William Penketh | 67 | Head | — | England |
| 14 | Nellie Penketh | 63 | Wife | — | England |
| 15 | Myrl Hoffman | 42 | Head | Homework | Kansas |
| 16 | Robert Hoffman | 16 | Son | — | Idaho |
| 17 | Ellen Hoffman | 14 | Daughter | — | Idaho |
| 18 | William F. Hulin | 78 | Father | — | New York |
| 19 | J. C. Sanford | 58 | Head | Flagman | Illinois |
| 20 | Luella Sanford | 46 | Wife | — | Michigan |
| 21 | Jack Sanford | 18 | Son | Truck Driver | Washington |
| 22 | Dora Sanford | 16 | Daughter | — | Washington |
| 23 | Louise Sherman | 24 | Daughter | Creamery Worker | Washington |
| 24 | Dolores Sherman | 6 | Granddaughter | — | Washington |
| 25 | Morris H. Roberts | 58 | Head | Bus Driver | Wales |
| 26 | Margaret Roberts | 52 | Wife | — | Pennsylvania |
| 27 | Thomas Roberts | 22 | Son | Service Attendant | Washington |
| 28 | Mary C. Roberts THIS PERSON | 20 | Daughter | Office Clerk | Washington |
| 29 | John Roberts | 17 | Son | — | Washington |
| 30 | Marjorie L. Roberts | 11 | Daughter | — | Washington |
| 31 | Catherine Moran | 74 | Mother-in-law | — | Eire |
| 32 | Roland Simone | 31 | Head | Service Station Manager | Washington |
| 33 | Ruth Simone | 32 | Wife | Cashier | Washington |
| 34 | Eugene Simone | 7 | Son | — | Washington |
| 35 | Ida Jensen | 67 | Mother-in-law | — | Illinois |
| 36 | Arnt O. Melting | 52 | Head | Bus Driver | Minnesota |
| 37 | L. Ward Davis | 34 | Head | Bus Driver | Washington |
| 38 | Lena Davis | 28 | Wife | Nurse | Oregon |
| 39 | Rosa M. Cook | 75 | Boarder | — | Iowa |
| 40 | Ethel Gilmar | 62 | Boarder | — | Canada |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)