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Mary Macdonald — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ramsey-County, Minnesota
Our Model Tree links this Mary Macdonald across the 1930 and 1940 US Censuses in Ramsey-County, Minnesota (XGBoost, ~Confirmed) — first a daughter (b.~1914), then head of a 9-person household.
Age 26
b. ~1914
Female
Daughter
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ramsey-County, Minnesota |
| Surname | MacDonald |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul City |
| 1935 Residence (County) | Ramsey County |
| Additional Details | |
| Occupation | Wrapper |
| Industry | Candy Factory |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 120 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Wrapper |
| Township / Ward | St Paul City |
| Est. Birth Year | ~1914 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Robert Macdonald | Son | — | 12 | ~1928 |
| Thomas Macdonald | Son | — | 31 | ~1909 |
| Stanley Macdonald | Son | — | 23 | ~1917 |
| Rachel Macdonald | Son | — | 38 | ~1902 |
| John Macdonald | Head | — | 65 | ~1875 |
| Mary Macdonald | Daughter | — | 26 | ~1914 |
| John Macdonald | Son | — | 35 | ~1905 |
| Hazel Macdonald | Daughter | — | 33 | ~1907 |
| Mary Macdonald | Spouse | — | 64 | ~1876 |
Census Appearances
1930
Ramsey, Minnesota
Daughter, age 16
Ramsey, Minnesota · implied b. ~1914 — 9 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 | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Ramsey-County, Minnesota
Daughter, age 26
Ramsey-County, Minnesota · implied b. ~1914 — 9 household members
| Surname | MacDonald |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul City |
| 1935 Residence (County) | Ramsey County |
| Occupation | Wrapper |
| Industry | Candy Factory |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 120 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Macdonald across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Macdonald
Daughter · 1940 · age 26 · b. ~1914 · Minnesota
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Sibling
Stanley Macdonald
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rachel Macdonald
Sibling · 1940 · age 38
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Macdonald
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hazel Macdonald
Sibling · 1940 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Macdonald
Sibling · 1940 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Macdonald
Sibling · 1940 · age 31
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 — Ramsey-County, Minnesota
Open full size
1940 US Federal Census — Ramsey-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02001-00684)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary H. Montzka | 35 | Wife | — | Wisconsin |
| 2 | Eugene L. Montzka | 8 | Son | — | Minnesota |
| 3 | James D. Montzka | 5 | Son | — | Minnesota |
| 4 | Margit Butkowski | 33 | Lodger | Railway Mail Clerk | Minnesota |
| 5 | Daniel E. Welch | 42 | Brother-in-law | — | Wisconsin |
| 6 | Louis J. Vermesching | 36 | Head | Proprietor | Minnesota |
| 7 | Genevieve Vermesching | 25 | Wife | — | Wisconsin |
| 8 | Louis J. Jr. Vermesching | 2 | Son | — | Minnesota |
| 9 | Ginger Vermesching | 1 | Daughter | — | Minnesota |
| 10 | John Macdonald | 65 | Head | Contractor Grading | Michigan |
| 11 | Mary Macdonald | 64 | Wife | — | Minnesota |
| 12 | Rachel A. Macdonald | 38 | Son | Truck Driver | Minnesota |
| 13 | John P. Macdonald | 35 | Son | Salesman | Minnesota |
| 14 | Hazel B. Macdonald | 33 | Daughter | — | Minnesota |
| 15 | Thomas J. Macdonald | 31 | Son | Truck Driver | Minnesota |
| 16 | Mary Macdonald THIS PERSON | 26 | Daughter | Wrapper | Minnesota |
| 17 | Stanley F. Macdonald | 23 | Son | Truck Driver | Minnesota |
| 18 | Robert E. Macdonald | 12 | Son | — | Minnesota |
| 19 | Clinton J. Arndt | 37 | Head | Printer | Minnesota |
| 20 | Ann H. Arndt | 36 | Wife | Book-Keeper | Minnesota |
| 21 | Ruth M. Arndt | 10 | Daughter | — | Minnesota |
| 22 | Carol J. Arndt | 8 | Daughter | — | Minnesota |
| 23 | Annie E. Hickey | 66 | Mother-in-law | — | New York |
| 24 | Patrick Thornton | 49 | Head | Mail Carrier | Ireland (Eire) |
| 25 | Beatrice Thornton | 43 | Wife | — | Ireland (Eire) |
| 26 | John P. Thornton | 17 | Son | — | Minnesota |
| 27 | James E. Thornton | 14 | Son | — | Minnesota |
| 28 | Joseph M. Thornton | 12 | Son | — | Minnesota |
| 29 | Frank F. Hannasch | 46 | Head | Proprietor | South Dakota |
| 30 | Julia Hannasch | 46 | Wife | — | Austria |
| 31 | Gerald G. Hannasch | 10 | Son | — | Minnesota |
| 32 | Donald P. Hannasch | 6 | Son | — | Minnesota |
| 33 | Herman F. Rogers | 74 | Head | — | Minnesota |
| 34 | Anna B. Rogers | 67 | Wife | — | Minnesota |
| 35 | Paul J. Gaffney | 33 | Head | Salesman | Minnesota |
| 36 | Mary K. Gaffney | 34 | Wife | — | Minnesota |
| 37 | James H. Macdonald | 65 | Head | Floor Man | Iowa |
| 38 | Rose B. Macdonald | 60 | Wife | — | Iowa |
| 39 | Stewart J. Macdonald | 25 | Son | Book-Keeper | Minnesota |
| 40 | Barbara R. Macdonald | 22 | Daughter | — | Minnesota |
Related Census Records
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)