MC
Mary Cullen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this Mary Cullen across the 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Cullen |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same house |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1929 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Cullen | Daughter | — | 11 | ~1929 |
| Lawrence Cullen | Other | — | 42 | ~1898 |
| Martin Cullen | Son | — | 14 | ~1926 |
| Michael Cullen | Son | — | 7 | ~1933 |
| Laurence Cullen | Son | — | 18 | ~1922 |
| Clara Polite | Other | — | 54 | ~1886 |
| Leona Cullen | Head | — | 39 | ~1901 |
Census Appearances
1930
St Louis, …
Daughter, age 1
St Louis, Missouri · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cullen |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Kansas |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Daughter, age 11
St.-Louis-City-County, Missouri · implied b. ~1929 — 7 household members
| Surname | Cullen |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis |
| Highest Grade | No 5 |
| 1935 Residence | Same house |
| 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 Cullen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cullen
Daughter · 1940 · age 11 · b. ~1929 · Missouri
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Sibling
Laurence Cullen
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Cullen
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martin Cullen
Sibling · 1940 · age 14
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-t0627-02194-00208)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gene Pruett | 5 | Daughter | — | Missouri |
| 2 | Sally Ann Pruett | 2 | Daughter | — | Missouri |
| 3 | George J. Gassner | 33 | Head | Sheet Metal Worker | Missouri |
| 4 | Betty Gassner | 31 | Wife | — | Tennessee |
| 5 | Paul R. Stock | 37 | Head | Minister | Missouri |
| 6 | Edith Stock | 33 | Wife | — | Missouri |
| 7 | Eleanore Stock | 10 | Daughter | — | Louisiana |
| 8 | Carol Stock | 9 | Daughter | — | Louisiana |
| 9 | Ruth Stock | 7 | Daughter | — | Louisiana |
| 10 | Claude Brevard | 61 | Head | Motorman Street Car | N. Carolina |
| 11 | Alma Brevard | 18 | Daughter | — | Missouri |
| 12 | John Brevard | 21 | Son | Painter | Missouri |
| 13 | Lucille Brevard | 17 | Daughter-in-law | New Worker | Montana |
| 14 | Engelbert H. Kramer | 47 | Head | Service Work | Missouri |
| 15 | Laura J. Kramer | 44 | Wife | — | Missouri |
| 16 | Harvey E. Kramer | 16 | Son | — | Missouri |
| 17 | Norman Kramer | 11 | Son | — | Missouri |
| 18 | Xavier Bober | 56 | Head | Proprietor | Illinois |
| 19 | Mary Bober | 28 | Daughter | — | Missouri |
| 20 | Julia Bober | 25 | Daughter | Beauty Operator | Missouri |
| 21 | John Bober | 22 | Son | Clerk | Missouri |
| 22 | Margaret Bober | 16 | Daughter | — | Missouri |
| 23 | William J. Weis | 42 | Head | Insurance Salesman | Missouri |
| 24 | Henrietta Weis | 31 | Wife | Shoe Worker | Missouri |
| 25 | Leona Cullen | 39 | Head | Sales Clerk | Kansas |
| 26 | Laurence Jr. Cullen | 18 | Son | Shipping Clerk | Missouri |
| 27 | Martin Cullen | 14 | Son | — | Missouri |
| 28 | Mary Cullen THIS PERSON | 11 | Daughter | — | Missouri |
| 29 | Michael Cullen | 7 | Son | — | Missouri |
| 30 | Clara Polite | 54 | Servant | Housework | Missouri |
| 31 | Lawrence Cullen | 42 | Lodger | Track Worker | Missouri |
| 32 | Oscar W. Fischer | 43 | Head | Carpenter | Missouri |
| 33 | Caroline Fischer | 42 | Wife | — | Missouri |
| 34 | Wilbur Fischer | 13 | Son | — | Missouri |
| 35 | Phil J. Mueller | 71 | Father-in-law | Baker | Germany |
| 36 | Richard M. Surbauch | 21 | Lodger | Carpenter | Illinois |
| 37 | Elmer Cervenka | 37 | Head | Machine Operator | Missouri |
| 38 | Ethel Cervenka | 29 | Wife | — | Missouri |
| 39 | Arline Cervenka | 8 | Daughter | — | Missouri |
| 40 | Doris Cervenka | 5 | Daughter | — | Missouri |
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)