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Mary Briggs — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this Mary Briggs across the 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Briggs |
| Given Name | Mary C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | St Louis City |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Thomas Briggs | Son | — | 7 | ~1933 |
| George Kinkel | Other | — | 43 | ~1897 |
| Joseph Briggs | Son | — | 18 | ~1922 |
| Ends Here | Other | — | — | |
| Harold Briggs | Head | — | 45 | ~1895 |
| Charles Briggs | Son | — | 21 | ~1919 |
| James Briggs | Son | — | 5 | ~1935 |
| Helen Briggs | Spouse | — | 45 | ~1895 |
| Mary Briggs | Daughter | — | 12 | ~1928 |
Census Appearances
1930
St Louis, …
Daughter, age 2
St Louis, Missouri · implied b. ~1928 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Briggs |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | Missouri |
| Can Read/Write | No |
| Veteran | No |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Daughter, age 12
St.-Louis-City-County, Missouri · implied b. ~1928 — 9 household members
| Surname | Briggs |
| Given Name | Mary C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis City |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| 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 Mary Briggs across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Briggs
Daughter · 1940 · age 12 · b. ~1928 · Missouri
★ You are viewing this record
Sibling
Joseph Briggs
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Briggs
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Briggs
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas 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 — St.-Louis-City-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-City-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02192-00704)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lizzie M. Oldendorf | 46 | Daughter | Stenog | Missouri |
| 42 | Rosa L. Moenninghoff | 78 | Head | — | Missouri |
| 43 | Charles Blind | 70 | Brother | Janitor | Missouri |
| 44 | Charles Jr. Blind | 18 | Grandnephew | Tanner | Missouri |
| 45 | Mary Behavetz | 60 | Head | — | Rumania |
| 46 | Mary Quint | 38 | Daughter | Saleslady | Rumania |
| 47 | William H. Quint | 17 | Grandson | — | Rumania |
| 48 | Edward J. Quint | 13 | Grandson | — | Missouri |
| 49 | Henrietta D. Quint | 8 | Granddaughter | — | Missouri |
| 50 | Julius Walkenhorst | 44 | Lodger | Watch Repairer | Germany |
| 51 | Kurt Walter | 32 | Head | Baker | Germany |
| 52 | Wilma M. Walter | 28 | Wife | — | Missouri |
| 53 | Mary F. Miller | 57 | Mother-in-law | Housework | Missouri |
| 54 | James N. White | 63 | Head | Private Watchman | Missouri |
| 55 | Amanda B. White | 43 | Wife | — | Michigan |
| 56 | Agnes L. Brown | 22 | Stepdaughter | — | Michigan |
| 57 | Harold C. Briggs | 45 | Head | Automobile Mechanic | New Jersey |
| 58 | Helen A. Briggs | 45 | Wife | — | Missouri |
| 59 | Charles A. Briggs | 21 | Son | Automobile Mechanic | Missouri |
| 60 | Joseph T. Briggs | 18 | Son | Auto Mechanic | Missouri |
| 61 | Mary C. Briggs THIS PERSON | 12 | Daughter | — | Missouri |
| 62 | Thomas X. Briggs | 7 | Son | — | Missouri |
| 63 | James F. Briggs | 5 | Son | — | Missouri |
| 64 | George A. Kinkel | 43 | Brother-in-law | Welder | Missouri |
| 65 | Ends Here | None | BLOCK | — | — |
| 66 | Charles N. Fronick | 35 | Head | Shipping Clerk | Missouri |
| 67 | Mabel A. Fronick | 33 | Wife | Cashier | Missouri |
| 68 | M. Audrey Cizek | 15 | Stepchild | — | Missouri |
| 69 | Dorothy L. Cizek | 13 | Stepchild | — | Missouri |
| 70 | Harry H. Harmann | 20 | Head | Sheet Metal Worker | Missouri |
| 71 | Patricia M. Harmann | 20 | Wife | Film Inspector | Missouri |
| 72 | Ella R. Harmann | 43 | Mother | Seamstress | Missouri |
| 73 | John A. Puzniak | 29 | Head | Press Operator | Missouri |
| 74 | Ann M. Puzniak | 27 | Wife | Seamstress | Missouri |
| 75 | Willard B. Boles | 34 | Head | Patrolman | Illinois |
| 76 | Wilma Boles | 34 | Wife | — | Missouri |
| 77 | Otto Schwerzler | 69 | Head | — | Austria |
| 78 | Rose Schwerzler | 66 | Wife | — | Austria |
| 79 | Gustave Ender | 34 | Son-in-law | Automobile Repairman | Missouri |
| 80 | Dorothy Ender | 40 | Daughter | Bookkeeper | Austria |
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)