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John Briggs — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pottawattamie-County, Iowa
Our Model Tree links this John Briggs across the 1930 and 1940 US Censuses in Pottawattamie-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 10-person household.
Age 10
b. ~1930
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pottawattamie-County, Iowa |
| Surname | Briggs |
| Given Name | John L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Council Bluffs |
| 1935 Residence (County) | Pottawattamie |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 4 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Council Bluffs |
| Est. Birth Year | ~1930 |
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 |
|---|---|---|---|---|
| James Briggs | Son | — | 4 | ~1936 |
| Harold Barrels | Other | — | 33 | ~1907 |
| Franklin Briggs | Son | — | 7 | ~1933 |
| Edwin Briggs | Head | — | 52 | ~1888 |
| Edwin Briggs | Son | — | 13 | ~1927 |
| John Briggs | Son | — | 10 | ~1930 |
| Bernadine Briggs | Daughter | — | 16 | ~1924 |
| Mary Briggs | Daughter | — | 19 | ~1921 |
| Catherine Briggs | Daughter | — | 18 | ~1922 |
| Anna Briggs | Spouse | — | 45 | ~1895 |
Census Appearances
1930
Pottawattamie, Iowa
Son, age 1
Pottawattamie, Iowa · implied b. ~1929 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Briggs |
| Given Name | John L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Pottawattamie-County, Iowa
Son, age 10
Pottawattamie-County, Iowa · implied b. ~1930 — 10 household members
| Surname | Briggs |
| Given Name | John L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Council Bluffs |
| 1935 Residence (County) | Pottawattamie |
| Income (1939) | 0 |
| Highest Grade | 4 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Briggs across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Briggs
Son · 1940 · age 10 · b. ~1930 · Iowa
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Sibling
Mary Briggs
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edwin Briggs
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernadine Briggs
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Briggs
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Briggs
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Franklin Briggs
Sibling · 1940 · age 7
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 — Pottawattamie-County, Iowa
Open full size
1940 US Federal Census — Pottawattamie-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01198-00584)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ethel Johnson | 44 | Wife | — | Iowa |
| 2 | Jerry P Johnson | 3 | Son | — | Iowa |
| 3 | Clinton C Johnson | 79 | Father | — | Iowa |
| 4 | Ella Barretts | 50 | Head | — | Iowa |
| 5 | Emma Barretts | 17 | Daughter | — | Iowa |
| 6 | Lillian Barretts | 14 | Daughter | — | Iowa |
| 7 | John Barretts | 9 | Son | — | Iowa |
| 8 | Edwin C Briggs | 52 | Head | Mail Carrier | Massachusetts |
| 9 | Anna M Briggs | 45 | Wife | — | Iowa |
| 10 | Mary Helena Briggs | 19 | Daughter | Waitress | Massachusetts |
| 11 | Catherine E Briggs | 18 | Daughter | — | Iowa |
| 12 | Bernadine Briggs | 16 | Daughter | — | Iowa |
| 13 | Edwin Jr Briggs | 13 | Son | — | Iowa |
| 14 | John L Briggs THIS PERSON | 10 | Son | — | Iowa |
| 15 | Franklin N Briggs | 7 | Son | — | Iowa |
| 16 | James A Briggs | 4 | Son | — | Iowa |
| 17 | Harold Barrels | 33 | Nephew | Salesman | Massachusetts |
| 18 | Ernest L Casaney | 59 | Head | Rod Man | Iowa |
| 19 | Emma Casaney | 54 | Wife | — | Iowa |
| 20 | Mary Scott | 67 | Head | — | Iowa |
| 21 | Lina Scott | 40 | Daughter | Sales Lady | Missouri |
| 22 | Judd Dana Scott | 43 | Son | Pullman Porter | Iowa |
| 23 | Edna Scott | 38 | Daughter in law | — | Iowa |
| 24 | Doris Elaine Scott | 17 | Granddaughter | — | Iowa |
| 25 | Herbert Scott | 15 | Grandson | Carrier | Iowa |
| 26 | Rosina Rain | 80 | Head | — | Illinois |
| 27 | Hanna Gostrup | 50 | Head | — | Iowa |
| 28 | Fred R Phillips | 50 | Head | — | Missouri |
| 29 | Mary J Phillips | 46 | Wife | — | Missouri |
| 30 | Cecil Phillips | 30 | Son | Truck Driver | Missouri |
| 31 | Mathilda Phillips | 26 | Daughter in law | — | Iowa |
| 32 | James Phillips | 1 | Son | — | Iowa |
| 33 | Annie Stewart | 52 | Head | — | Iowa |
| 34 | Wayne Plaster | 30 | Son | Candy Maker | Iowa |
| 35 | Sylvia Plaster | 27 | Daughter | — | Iowa |
| 36 | Samuel Friedman | 75 | Head | Owner | Lithuania |
| 37 | Naomi Friedman | 75 | Wife | — | Lithuania |
| 38 | Sarah Levin | 54 | Daughter | — | Nebraska |
| 39 | Herman Friedman | 46 | Son | Assistant Manager | Iowa |
| 40 | Ida Harrington | 55 | Head | — | Iowa |
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)