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Mary Barr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kent-County, Michigan
Our Model Tree links this Mary Barr across the 1930 and 1940 US Censuses in Kent-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kent-County, Michigan |
| Surname | Barr |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (County) | KENT |
| Additional Details | |
| Highest Grade | No 4 |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Grand Rapids City |
| Est. Birth Year | ~1929 |
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 |
|---|---|---|---|---|
| Mary Barr | Spouse | — | 47 | ~1893 |
| Lena Barr | Daughter | — | 18 | ~1922 |
| Mary Barr | Daughter | — | 11 | ~1929 |
| Clarence Barr | Head | — | 50 | ~1890 |
| Leo Barr | Son | — | 15 | ~1925 |
| Charles Barr | Son | — | 21 | ~1919 |
| Donald Barr | Son | — | 8 | ~1932 |
Census Appearances
1930
Kent, Michigan
Daughter, age 1
Kent, Michigan · implied b. ~1929 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barr |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Kent-County, Michigan
Daughter, age 11
Kent-County, Michigan · implied b. ~1929 — 7 household members
| Surname | Barr |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (County) | KENT |
| Highest Grade | No 4 |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Barr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Barr
Daughter · 1940 · age 11 · b. ~1929 · Michigan
★ You are viewing this record
Sibling
Lena Barr
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Barr
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Barr
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Barr
Sibling · 1940 · age 15
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, Michigan
Open full size
1940 US Federal Census — Kent-County, Michigan
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01901-00295)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joyce Scott | 0 | Daughter | — | Michigan |
| 2 | James Mccook | 48 | Head | Dining Room Captain | Michigan |
| 3 | Robert L. Harris | 25 | Head | Janitor | Kentucky |
| 4 | Ruth Harris | 24 | Wife | — | Louisiana |
| 5 | Dan A. Miller | 68 | Head | — | Georgia |
| 6 | Minnie Miller | 56 | Wife | — | Mississippi |
| 7 | Robert A. Miller | 8 | Son | — | Michigan |
| 8 | Jean Ruth Miller | 6 | Granddaughter | — | Michigan |
| 9 | Tony Debarkhoe | 74 | Head | 0 | Italy |
| 10 | Clarence Barr | 50 | Head | — | Michigan |
| 11 | Mary Barr | 47 | Wife | — | Michigan |
| 12 | Charles Barr | 21 | Son | Mechanic | Michigan |
| 13 | Lena Barr | 18 | Daughter | Housemaid | Michigan |
| 14 | Leo Barr | 15 | Son | — | Michigan |
| 15 | Mary Barr THIS PERSON | 11 | Daughter | — | Michigan |
| 16 | Donald Barr | 8 | Son | — | Michigan |
| 17 | W. Allen Fox | 40 | Head | — | Michigan |
| 18 | Mildred Fox | 30 | Wife | — | Michigan |
| 19 | Leland Fox | 12 | Son | — | Michigan |
| 20 | George Fox | 10 | Son | — | Michigan |
| 21 | Orvil Fox | 8 | Son | — | Michigan |
| 22 | Grace Fox | 6 | Daughter | — | Michigan |
| 23 | Ray Fox | 5 | Son | — | Michigan |
| 24 | Virginia Fox | 3 | Daughter | — | Michigan |
| 25 | Kenneth Fox | 1 | Son | — | Michigan |
| 26 | Mary Ellen Slater | 73 | Head | — | Michigan |
| 27 | Samuel L. Blakeley | 67 | Head | — | Ohio |
| 28 | Martha M. Blakeley | 63 | Wife | — | Indiana |
| 29 | Esther Blakeley | 17 | Daughter | Glass Washer | Indiana |
| 30 | Joseph Kammeraad | 53 | Head | — | Michigan |
| 31 | Margaret Kammeraad | 52 | Wife | — | Michigan |
| 32 | Morris Alphear | 35 | Lodger | Salesman | Michigan |
| 33 | Elizabeth Alphear | 28 | Wife | — | Michigan |
| 34 | Dale Alphear | 4 | Lodger's Son | — | Michigan |
| 35 | Alfred S. Downer | 61 | Head | — | England |
| 36 | Goldie M. Downer | 44 | Wife | — | Indiana |
| 37 | Willa Downer | 22 | Daughter | — | W. Virginia |
| 38 | Russell Ward | 25 | Head | 50 | Michigan |
| 39 | Lavine Ward | 21 | Wife | — | Michigan |
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)