JB
John Baird — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Polk-County, Minnesota
Our Model Tree links this John Baird across the 1930 and 1940 US Censuses in Polk-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 10-person household.
Age 17
b. ~1923
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Minnesota |
| Surname | Baird |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Crookston twp |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Farmer |
| Industry | at farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farmer |
| Township / Ward | Crookston Twp |
| Est. Birth Year | ~1923 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| George Baird | Head | — | 49 | ~1891 |
| Wallace Baird | Son | — | 8 | ~1932 |
| Willard Baird | Son | — | 10 | ~1930 |
| Alvion Baird | Son | — | 7 | ~1933 |
| Richard Baird | Son | — | 14 | ~1926 |
| Pauline Baird | Daughter | — | 4 | ~1936 |
| Mabel Baird | Spouse | — | 42 | ~1898 |
| Edith Baird | Daughter | — | 16 | ~1924 |
| John Baird | Son | — | 17 | ~1923 |
| George Baird | Son | — | 11 | ~1929 |
Census Appearances
1930
Polk, Minnesota
Son, age 7
Polk, Minnesota · implied b. ~1923 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baird |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Minnesota |
| Can Read/Write | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Polk-County, Minnesota
Son, age 17
Polk-County, Minnesota · implied b. ~1923 — 10 household members
| Surname | Baird |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Crookston twp |
| 1935 Residence (County) | Polk |
| Occupation | Farmer |
| Industry | at farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| 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 John Baird across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Baird
Son · 1940 · age 17 · b. ~1923 · Minnesota
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Sibling
Pauline Baird
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willard Baird
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Baird
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alvion Baird
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Baird
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wallace Baird
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edith Baird
Sibling · 1940 · age 16
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 — Polk-County, Minnesota
Open full size
1940 US Federal Census — Polk-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01949-00350)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Evelyn Baird | 16 | Daughter | — | Minnesota |
| 2 | Charles Baird | 13 | Son | — | Minnesota |
| 3 | Ruth Baird | 11 | Daughter | — | Minnesota |
| 4 | Matilda Baird | 8 | Daughter | — | Minnesota |
| 5 | Bernice Baird | 5 | Daughter | — | Minnesota |
| 6 | Mary Baird | 3 | Daughter | — | Minnesota |
| 7 | Bert Abrohomson | 39 | Head | Farmer | Minnesota |
| 8 | Edna Abrohomson | 35 | Wife | At Home | Minnesota |
| 9 | Earl Abrohomson | 12 | Son | — | Minnesota |
| 10 | Neal Abrohomson | 9 | Son | — | Minnesota |
| 11 | Dorothy Abrohomson | 4 | Daughter | — | Minnesota |
| 12 | Melissa Abrohomson | 2 | Daughter | — | Minnesota |
| 13 | George B. Baird | 49 | Head | Farmer | Iowa |
| 14 | Mabel Baird | 42 | Wife | At Home | Minnesota |
| 15 | John Baird THIS PERSON | 17 | Son | Farmer | Minnesota |
| 16 | Edith Baird | 16 | Daughter | — | Minnesota |
| 17 | Richard Baird | 14 | Son | — | Minnesota |
| 18 | George Baird | 11 | Son | — | Minnesota |
| 19 | Willard Baird | 10 | Son | — | Minnesota |
| 20 | Wallace Baird | 8 | Son | — | Minnesota |
| 21 | Alvion Baird | 7 | Son | — | Minnesota |
| 22 | Pauline Baird | 4 | Daughter | — | Minnesota |
| 23 | Eric Norrie | 42 | Head | Clerk | Minnesota |
| 24 | Margaret Norrie | 44 | Wife | Farmer | Minnesota |
| 25 | Douglas Norrie | 22 | Son | Farmer | Polk Co. |
| 26 | Marion Norrie | 20 | Daughter | Telephone Op | Minnesota |
| 27 | Louis Norrie | 17 | Daughter | — | Minnesota |
| 28 | John Seibert | 82 | Father | — | Germany |
| 29 | Joe Blachowski | 40 | Head | Labor | Minnesota |
| 30 | Salma Blachowski | 39 | Wife | Labor | Minnesota |
| 31 | Martin P. Larson | 47 | Head | Home Work | Minnesota |
| 32 | Clara Larson | 37 | Wife | Farmer | Minnesota |
| 33 | Lillian Larson | 16 | Daughter | At Home | Minnesota |
| 34 | Melvin Larson | 2 | Son | — | Minnesota |
| 35 | Ray Allen | 30 | Labor | Labor | Minnesota |
| 36 | Clarence Guenther | 56 | Head | Labor | Iowa |
| 37 | Effie Guenther | 52 | Wife | At Home | Iowa |
| 38 | Clement Guenther | 30 | Son | — | Iowa |
| 39 | Rosarie S. Boucher | 24 | Head | Farmer | Minnesota |
| 40 | Alice Boucher | 27 | Wife | At Home | Minnesota |
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)