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John Barr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pettis-County, Missouri
Our Model Tree links this John Barr across the 1930 and 1940 US Censuses in Pettis-County, Missouri (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 8-person household.
Age 18
b. ~1922
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pettis-County, Missouri |
| Surname | Barr |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (County) | Pettis |
| Additional Details | |
| Industry | High School Student |
| Highest Grade | H-4 |
| 1935 Residence | Pettis |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Blackwater |
| Est. Birth Year | ~1922 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| William Barr | Son | — | 15 | ~1925 |
| Anna Barr | Daughter | — | 7 | ~1933 |
| John Barr | Son | — | 18 | ~1922 |
| Mary Barr | Daughter | — | 1 | ~1939 |
| David Barr | Son | — | 16 | ~1924 |
| Kenneth Barr | Son | — | 6 | ~1934 |
| Frances Barr | Spouse | — | 38 | ~1902 |
| Robert Barr | Head | — | 44 | ~1896 |
Census Appearances
1930
Saline, Missouri
Other, age 8
Saline, Missouri · implied b. ~1922 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barr |
| Given Name | John J. |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Pettis-County, Missouri
Son, age 18
Pettis-County, Missouri · implied b. ~1922 — 8 household members
| Surname | Barr |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (County) | Pettis |
| Industry | High School Student |
| Highest Grade | H-4 |
| 1935 Residence | Pettis |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Barr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Barr
Son · 1940 · age 18 · b. ~1922 · Missouri
★ You are viewing this record
Sibling
Kenneth Barr
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Barr
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Barr
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Barr
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Barr
Sibling · 1940 · age 1
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 — Pettis-County, Missouri
Open full size
1940 US Federal Census — Pettis-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02139-00017)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Norma J. Daniels | 9 | Daughter | — | Missouri |
| 2 | Lawrence Robertson | 38 | Head | 44 | Missouri |
| 3 | Addie Robertson | 37 | Wife | — | Missouri |
| 4 | Walter T. Behler | 35 | Head | 44 | Missouri |
| 5 | Minnie L. Behler | 37 | Wife | — | Missouri |
| 6 | Alice M. Welch | 69 | Head | 44 | Missouri |
| 7 | Kate D. Welch | 47 | Daughter | — | Missouri |
| 8 | Floyd D. Welch | 27 | Son | 44 | Missouri |
| 9 | Robert L. Barr | 44 | Head | 44 | Missouri |
| 10 | Frances H. Barr | 38 | Wife | — | Missouri |
| 11 | John J. Barr THIS PERSON | 18 | Son | — | Missouri |
| 12 | David L. Barr | 16 | Son | — | Missouri |
| 13 | William H. Barr | 15 | Son | — | Missouri |
| 14 | Anna M. Barr | 7 | Daughter | — | Missouri |
| 15 | Kenneth J. Barr | 6 | Son | — | Missouri |
| 16 | Mary A. Barr | 1 | Daughter | — | Missouri |
| 17 | Charles H. York | 47 | Head | 44 | Missouri |
| 18 | Bess A. York | 49 | Wife | — | Nebraska |
| 19 | Henry Viebrock | 64 | Head | 44 | Illinois |
| 20 | Johnnie M. Viebrock | 64 | Wife | — | Missouri |
| 21 | Renata H. Viebrock | 29 | Daughter | — | Missouri |
| 22 | Frieda J. Viebrock | 22 | Daughter | — | Missouri |
| 23 | Homer O. Kendall | 39 | Head | 44 | Indiana |
| 24 | Emogene Kendall | 31 | Wife | — | Kentucky |
| 25 | Doris R. Kendall | 13 | Daughter | — | Wisconsin |
| 26 | James W. Kendall | 11 | Son | — | Indiana |
| 27 | Wayne C. Kendall | 10 | Son | — | Indiana |
| 28 | Claude C. Kendall | 8 | Son | — | Arkansas |
| 29 | George C. Kendall | 5 | Son | — | Missouri |
| 30 | Patsy Ann Kendall | 2 | Daughter | — | Missouri |
| 31 | Joe Calson | 50 | Head | 44 | Missouri |
| 32 | Eula M. Calson | 42 | Wife | — | Missouri |
| 33 | John R. Calson | 23 | Son | 44 | Missouri |
| 34 | Elizabeth M. Calson | 20 | Daughter | — | Missouri |
| 35 | Seth M. Calson | 20 | Son | 44 | Missouri |
| 36 | Benjamin F. Calson | 15 | Son | — | Missouri |
| 37 | Melba E. Calson | 11 | Daughter | — | Missouri |
| 38 | Carl E. Calson | 9 | Son | — | Missouri |
| 39 | Laura D. B. Weddle | 73 | Head | — | Virginia |
| 40 | George E. A. Werthing | 52 | Head | 44 | Missouri |
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)