JB
John Baird — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Columbia-County, Wisconsin
Our Model Tree links this John Baird across the 1930 and 1940 US Censuses in Columbia-County, Wisconsin (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 6-person household.
Age 12
b. ~1928
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Columbia-County, Wisconsin |
| Surname | Baird |
| Given Name | John Earl |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Caledonia Township |
| 1935 Residence (County) | Columbia |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Caledonia Township |
| Est. Birth Year | ~1928 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| James Baird | Son | — | 10 | ~1930 |
| John Baird | Son | — | 12 | ~1928 |
| Carl Baird | Head | — | 41 | ~1899 |
| Margaret Baird | Spouse | — | 41 | ~1899 |
| Elaine Baird | Daughter | — | 20 | ~1920 |
| Bonalyn Baird | Daughter | — | 16 | ~1924 |
Census Appearances
1930
Columbia, Wisconsin
Son, age 2
Columbia, Wisconsin · implied b. ~1928 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baird |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Columbia-County, Wisconsin
Son, age 12
Columbia-County, Wisconsin · implied b. ~1928 — 6 household members
| Surname | Baird |
| Given Name | John Earl |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Caledonia Township |
| 1935 Residence (County) | Columbia |
| Class of Worker | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 12 · b. ~1928 · Wisconsin
★ You are viewing this record
Sibling
Bonalyn Baird
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elaine Baird
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Baird
Sibling · 1940 · age 10
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 — Columbia-County, Wisconsin
Open full size
1940 US Federal Census — Columbia-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04466-00033)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Orville Thurston | 33 | Head | Mechanic | Iowa |
| 2 | Miller Thurston | 31 | son | Farmer | Iowa |
| 3 | Fern Thurston | 27 | daughter | — | Wisconsin |
| 4 | Donald Thurston | 1 | grand-son | — | Wisconsin |
| 5 | Reginald White | 32 | Head | Minister | England |
| 6 | Marga W. White | 31 | wife | — | England |
| 7 | John E. Fleming | 36 | Head | Farmer | Wisconsin |
| 8 | Lena Genrich | 50 | housekeeper | Housekeeper | Wisconsin |
| 9 | Willie Ankenbrandt | 38 | lodger | Laborer | Wisconsin |
| 10 | William Dittberner | 62 | Head | Farmer | Wisconsin |
| 11 | Agnes M. Dittberner | 61 | wife | — | Wisconsin |
| 12 | Marian Isabel Anderson | 32 | nurse | — | Wisconsin |
| 13 | Walter Booth | 65 | lodger | — | Wisconsin |
| 14 | John Richmond | 67 | Head | Farmer | Wisconsin |
| 15 | Elizabeth Richmond | 65 | wife | — | Wisconsin |
| 16 | Seldon Richmond | 23 | son | Laborer | Wisconsin |
| 17 | Roy Mcleish | 48 | Head | Farmer | Wisconsin |
| 18 | Grace Mcleish | 45 | wife | — | Wisconsin |
| 19 | Marvin Mcleish | 19 | son | Laborer | Wisconsin |
| 20 | Adolph Brick | 54 | Head | Farmer | Russia |
| 21 | Grace Brick | 53 | wife | — | Wisconsin |
| 22 | Louis Brick | 20 | son | Laborer | Wisconsin |
| 23 | Eleanor Brick | 16 | daughter | — | Wisconsin |
| 24 | Thomas Ramsay | 46 | Head | Farmer | Wisconsin |
| 25 | Agnes Ramsay | 43 | wife | — | Wisconsin |
| 26 | Ellsworth Ramsay | 20 | son | Laborer | Wisconsin |
| 27 | Margaret Ramsay | 17 | daughter | — | Wisconsin |
| 28 | Ronald Ramsay | 14 | son | — | Wisconsin |
| 29 | Marian Ramsay | 11 | daughter | — | Wisconsin |
| 30 | Doris Ramsay | 9 | daughter | — | Wisconsin |
| 31 | Wilma Ramsay | 7 | daughter | — | Wisconsin |
| 32 | Doris Tomlinson | 22 | lodger | Teacher | Wisconsin |
| 33 | Melvin Dittberner | 27 | Head | Laborer | Wisconsin |
| 34 | Bertha Dittberner | 21 | wife | — | Wisconsin |
| 35 | Carl Baird | 41 | Head | Farmer | Wisconsin |
| 36 | Margaret Baird | 41 | wife | — | Wisconsin |
| 37 | Elaine Baird | 20 | daughter | — | Wisconsin |
| 38 | Bonalyn Baird | 16 | daughter | — | Wisconsin |
| 39 | John Earl Baird THIS PERSON | 12 | son | — | Wisconsin |
| 40 | James Baird | 10 | son | — | Wisconsin |
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)