MS
Margaret Sweeney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this Margaret Sweeney across the 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 9-person household.
Age 13
b. ~1927
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Sweeney |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1927 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Phillip Sweeney | Son | — | 5 | ~1935 |
| Margaret Sweeney | Daughter | — | 13 | ~1927 |
| Mary Sweeney | Spouse | — | 39 | ~1901 |
| John Sweeney | Son | — | 10 | ~1930 |
| Vincent Sweeney | Son | — | 3 | ~1937 |
| James Sweeney | Son | — | 8 | ~1932 |
| Mary Sweeney | Daughter | — | 14 | ~1926 |
| Edward Sweeney | Head | — | 40 | ~1900 |
| Edward Sweeney | Son | — | 16 | ~1924 |
Census Appearances
1930
St Louis, …
Daughter, age 2
St Louis, Missouri · implied b. ~1928 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Daughter, age 13
St.-Louis-City-County, Missouri · implied b. ~1927 — 9 household members
| Surname | Sweeney |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis |
| Income (1939) | 0 |
| Highest Grade | 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 Margaret Sweeney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Sweeney
Daughter · 1940 · age 13 · b. ~1927 · Missouri
★ You are viewing this record
Sibling
Mary Sweeney
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phillip Sweeney
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Sweeney
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Sweeney
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Sweeney
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Sweeney
Sibling · 1940 · age 3
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-t0627-02193-00648)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Emma Schmeer | 40 | Wife | — | Missouri |
| 2 | Paul Schmeer | 19 | Son | — | Missouri |
| 3 | Thelma Schmeer | 17 | Daughter | — | Missouri |
| 4 | Theodore Schmeer | 15 | Son | — | Missouri |
| 5 | Richard Schmeer | 12 | Son | — | Missouri |
| 6 | Doris Schmeer | 9 | Daughter | — | Missouri |
| 7 | Carol Ann Schmeer | 4 | Daughter | — | Missouri |
| 8 | William Hoffelder | 35 | Head | Heater | Missouri |
| 9 | Ottillie Hoffelder | 29 | Wife | — | Missouri |
| 10 | Elizabeth Muschany | 55 | Mother-in-law | — | Missouri |
| 11 | Arnold James | 56 | Head | Stationary Engineer | Missouri |
| 12 | Irene James | 49 | Wife | — | Missouri |
| 13 | Earl James | 21 | Son | Truck Driver | Missouri |
| 14 | Pearl James | 21 | Daughter-in-law | Sales Girl | Missouri |
| 15 | Earl Jr. James | 1 | Grandson | — | Missouri |
| 16 | William Althether | 36 | Head | Electrical Maintenance | Missouri |
| 17 | Catherine Althether | 30 | Wife | — | Missouri |
| 18 | Mary E. Althether | 7 | Daughter | — | Missouri |
| 19 | Theresa A. Althether | 5 | Daughter | — | Missouri |
| 20 | Anna M. Althether | 2 | Daughter | — | Missouri |
| 21 | Joseph Trandle | 30 | Head | Beer Bottler | Missouri |
| 22 | Dorothy Trandle | 28 | Wife | — | Missouri |
| 23 | Joseph Jr. Trandle | 6 | Son | — | Missouri |
| 24 | Paul Miller | 63 | Father-in-law | — | Lithuania |
| 25 | Anna Miller | 53 | Mother-in-law | — | Brazil |
| 26 | Edward Sweeney | 40 | Head | Traffic Clerk | Missouri |
| 27 | Mary Sweeney | 39 | Wife | — | Missouri |
| 28 | Edward Jr. Sweeney | 16 | Son | Janitors Helper | Missouri |
| 29 | Mary Ann Sweeney | 14 | Daughter | — | Missouri |
| 30 | Margaret Sweeney THIS PERSON | 13 | Daughter | — | Missouri |
| 31 | John Sweeney | 10 | Son | — | Missouri |
| 32 | James Sweeney | 8 | Son | — | Missouri |
| 33 | Phillip Sweeney | 5 | Son | — | Missouri |
| 34 | Vincent Sweeney | 3 | Son | — | Missouri |
| 35 | Elmer Hildebrandt | 34 | Head | Police Officer | Missouri |
| 36 | Dorothy Hildebrandt | 35 | Wife | — | Illinois |
| 37 | Allan Hildebrandt | 13 | Son | — | Missouri |
| 38 | Warren Hildebrandt | 9 | Son | — | Missouri |
| 39 | — | None | — | — | — |
| 40 | William J. Usher | 34 | Head | Foreman | 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)