MG
Mary Gallagher — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-County, Missouri
Our Model Tree links this Mary Gallagher across the 1920, 1930 and 1940 US Censuses in St.-Louis-County, Missouri (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 5-person household.
Age 39
b. ~1901
Female
Spouse
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Missouri |
| Surname | Gallagher |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Normandy Township |
| 1935 Residence (County) | St. Louis |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same house |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Normandy Township |
| Est. Birth Year | ~1901 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Eileen Gallagher | Daughter | — | 8 | ~1932 |
| Alex Gallagher | Head | — | 53 | ~1887 |
| Margaret Street | Other | — | 62 | ~1878 |
| Alex Gallagher | Son | — | 12 | ~1928 |
| Mary Gallagher | Spouse | — | 39 | ~1901 |
Census Appearances
1920
St Louis, …
Spouse, age 20
St Louis, Missouri · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gallagher |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Louis, …
Spouse, age 29
St Louis, Missouri · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gallagher |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 25 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-County, Missouri
Spouse, age 39
St.-Louis-County, Missouri · implied b. ~1901 — 5 household members
| Surname | Gallagher |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Normandy Township |
| 1935 Residence (County) | St. Louis |
| Income (1939) | 0 |
| 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 Gallagher across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Gallagher
Spouse · 1940 · age 39 · b. ~1901 · Missouri
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — St.-Louis-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02153-00477)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lula Dismuke | 53 | Head | — | Missouri |
| 42 | Richard Dismuke | 19 | Son | Attendant | Missouri |
| 43 | Russell Dismuke | 17 | Son | Attendant | Missouri |
| 44 | Gerald Scott | 27 | Son-in-law | Stock Overseer | Missouri |
| 45 | Goldie Scott | 28 | Daughter | — | Missouri |
| 46 | Geraldine Scott | 4 | Grand-daughter | — | Missouri |
| 47 | Johnnie Scott | 1 | Grand-son | — | Missouri |
| 48 | John H. Harris | 65 | Head | Buyer Of Junk | Kentucky |
| 49 | Lizie B. Harris | 62 | Wife | — | Missouri |
| 50 | Cousins Harris | 14 | Son | — | Arizona |
| 51 | Ras. Johnson | 61 | Head | Carpenter | Tennessee |
| 52 | Marie Johnson | 51 | Wife | — | Tennessee |
| 53 | W. W. Woods | 49 | Lodger | Carpenter | Indiana |
| 54 | Leo Boen | 32 | Head | Meat Cutter | Illinois |
| 55 | Katherine Boen | 22 | Wife | — | Missouri |
| 56 | Dan Dawson | 42 | Head | Proprietor | Missouri |
| 57 | Emma Dawson | 42 | Wife | — | Missouri |
| 58 | Norma Lee Dawson | 11 | Daughter | — | Missouri |
| 59 | Dolores Dawson | 7 | Daughter | — | Missouri |
| 60 | Ronald Dawson | 2 | Son | — | Missouri |
| 61 | Frank Seufert | 41 | Head | Orderly | Missouri |
| 62 | Viva Seufert | 26 | Wife | — | Missouri |
| 63 | Harriet Seufert | 6 | Daughter | — | Missouri |
| 64 | Robert Seufert | 1 | Son | — | Missouri |
| 65 | Harriet Revelle | 67 | Mother-in-law | — | Missouri |
| 66 | Alex. Gallagher | 53 | Head | Office Clerk | Missouri |
| 67 | Mary Gallagher THIS PERSON | 39 | Wife | — | Missouri |
| 68 | Alex Jr. Gallagher | 12 | Son | — | Missouri |
| 69 | Eileen Gallagher | 8 | Daughter | — | Missouri |
| 70 | Margaret Street | 62 | Aunt | — | Missouri |
| 71 | Charles Henry | 47 | Head | Bricklayer | Missouri |
| 72 | Wilma Henry | 36 | Wife | — | Missouri |
| 73 | John Henry | 15 | Son | — | Missouri |
| 74 | Louis Henry | 13 | Son | — | Missouri |
| 75 | Wilma Henry | 11 | Daughter | — | Missouri |
| 76 | Chas. Jr. Henry | 8 | Son | — | Missouri |
| 77 | Pauline Henry | 6 | Daughter | — | Missouri |
| 78 | Betty Henry | 4 | Daughter | — | Missouri |
| 79 | Edward Henry | 2 | Son | — | Missouri |
| 80 | Jerry Henry | 0 | Son | — | 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)