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Mary Mcdonald — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kent-County, Rhode Island
Our Model Tree links this Mary Mcdonald across the 1920, 1930 and 1940 US Censuses in Kent-County, Rhode Island (XGBoost, ~Confirmed), with identified parents James & Jas — first a daughter (b.~1905), then head of a 5-person household.
Age 35
b. ~1905
Female
Daughter
Born: Rhode Island
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kent-County, Rhode Island |
| Surname | McDonald |
| Given Name | Mary K. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Warwick City |
| 1935 Residence (County) | Kent |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | State of R. I. |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 832 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Occupation | Bookkeeper |
| Township / Ward | Warwick City |
| Est. Birth Year | ~1905 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Alice Mcdonald | Daughter | — | 30 | ~1910 |
| Mary Mcdonald | Daughter | — | 35 | ~1905 |
| James Mcdonald | Head | — | 65 | ~1875 |
| Francis Mcdonald | Son | — | 29 | ~1911 |
| Katherine Mcdonald | Spouse | — | 59 | ~1881 |
Census Appearances
1920
Kent, Rhode …
Daughter, age 16
Kent, Rhode Island · implied b. ~1904 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1930
Kent, Rhode …
Daughter, age 27
Kent, Rhode Island · implied b. ~1903 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Donald |
| Given Name | Mary E. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Northern Ireland |
| Occupation | stenographer |
| Industry | who. paper |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1940
Kent-County, Rhode …
Daughter, age 35
Kent-County, Rhode Island · implied b. ~1905 — 5 household members
| Surname | McDonald |
| Given Name | Mary K. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Warwick City |
| 1935 Residence (County) | Kent |
| Occupation | Bookkeeper |
| Industry | State of R. I. |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 832 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
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 Mcdonald across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Mcdonald (~0.92 confidence) and father Jas Mcdonald (~0.92 confidence) and mother Katherine Mcdonald (~0.92 confidence) and mother Catherine Mcdonald (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Mcdonald
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Jas Mcdonald
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Katherine Mcdonald
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Catherine Mcdonald
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Mcdonald
Daughter · 1940 · age 35 · b. ~1905 · Rhode Island
★ You are viewing this record
Sibling
Alice Mcdonald
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Mcdonald
Sibling · 1940 · age 29
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 — Kent-County, Rhode Island
Open full size
1940 US Federal Census — Kent-County, Rhode Island
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03759-00139)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Percy Douglas | 22 | Son | Salesman | Rhode Island |
| 2 | Richard Douglas | 17 | Son | Salesman | Rhode Island |
| 3 | John Houston | 54 | Head | Baker | Scotland |
| 4 | Jane Houston | 51 | Wife | — | Scotland |
| 5 | Robert Houston | 23 | Son | Crate Tender | Scotland |
| 6 | Thomas J. Houston | 12 | Son | — | Rhode Island |
| 7 | Joseph F. Brisclois | 41 | Head | Truck Driver | Canada-French |
| 8 | Florence M. Brisclois | 40 | Wife | — | England |
| 9 | Robert J. Brisclois | 7 | Son | — | Rhode Island |
| 10 | Kenneth Brisclois | 4 | Son | — | Rhode Island |
| 11 | Marguerite Considine | 29 | Head | Bookkeeper | Rhode Island |
| 12 | Considine Considine | 8 | daughter | — | Florida |
| 14 | Charles S. Svenson | 75 | Head | Painter | Sweden |
| 15 | Alsing Wilhelmina Svenson | 57 | Maid | Maid | Rhode Island |
| 16 | Joseph E. Longley | 58 | Head | Owner | Rhode Island |
| 17 | Abbie G. Longley | 56 | Wife | — | Rhode Island |
| 18 | Ralph Bertha Longley | 66 | Sister | — | Rhode Island |
| 19 | James S. Mcdonald | 65 | Head | Watchman | Rhode Island |
| 20 | Katherine Mcdonald | 59 | Wife | — | Eire |
| 21 | Mary K. Mcdonald THIS PERSON | 35 | Daughter | Bookkeeper | Rhode Island |
| 22 | Alice R. Mcdonald | 30 | Daughter | Secretary | Rhode Island |
| 23 | Francis C. Mcdonald | 29 | Son | Electrician | Rhode Island |
| 24 | Dora C. Johnson | 49 | Head | Dressmaker | Rhode Island |
| 25 | George E. Olson | 59 | Step-brother | Painter | Massachusetts |
| 26 | R. Alden Vient | 44 | Head | Owner | New Hampshire |
| 27 | Ada E. Vient | 39 | Wife | — | Rhode Island |
| 28 | R. Alden Jr. Vient | 14 | Son | — | Rhode Island |
| 29 | Phyllis Ann Vient | 11 | daughter | — | Rhode Island |
| 30 | Meredith C. Vient | 5 | daughter | — | Rhode Island |
| 31 | Marion S. Smyth | 37 | Maid | Maid | New Hampshire |
| 32 | Ernest S. Winslow | 70 | Head | Agent | Rhode Island |
| 33 | Leonore E. Winslow | 70 | Wife | — | Rhode Island |
| 34 | Arlan E. Winslow | 34 | Son | Salesman | Rhode Island |
| 35 | Pauline Potter | 43 | Head | — | — |
| 36 | Margaret Drury | 24 | Son | Tree Surgeon | — |
| 37 | Thomas W. Holderson | 57 | Head | Cutter | England |
| 38 | Grace H. Holderson | 57 | Wife | — | Rhode Island |
| 39 | Helen Holderson | 27 | daughter | Secretary | Rhode Island |
| 40 | Ida J. Burt | 57 | Head | — | Rhode Island |
Related Census Records
Pedigree Summary
Mary + 2 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)