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Mary Murphy — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this Mary Murphy across the 1920, 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed), with identified parents Thomas & William — first a daughter (b.~1920), then head of a 5-person household.
Age 20
b. ~1920
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Murphy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Occupation | Model |
| Industry | Wholesale Dry Goods |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 720 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Model |
| Township / Ward | St Louis |
| Est. Birth Year | ~1920 |
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 |
|---|---|---|---|---|
| Mary Murphy | Daughter | — | 20 | ~1920 |
| Patricia Murphy | Daughter | — | 12 | ~1928 |
| William Murphy | Head | — | 71 | ~1869 |
| Billy Murphy | Son | — | 4 | ~1936 |
| Genevieve Murphy | Spouse | — | 51 | ~1889 |
Census Appearances
1920
St Louis, …
Daughter, age
St Louis, Missouri · implied b. ~1920 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Louis, …
Daughter, age 10
St Louis, Missouri · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Daughter, age 20
St.-Louis-City-County, Missouri · implied b. ~1920 — 5 household members
| Surname | Murphy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis |
| 1935 Residence (County) | St. Louis City |
| Occupation | Model |
| Industry | Wholesale Dry Goods |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 720 |
| Highest Grade | H-4 |
| 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 Murphy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Murphy (~0.92 confidence) and father William Murphy (~0.92 confidence) and father William Murphy (~0.92 confidence) and mother Genevieve Murphy (~0.92 confidence) and mother Genevieve Murphy (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Murphy
b. ~1899
Source father
● Household
· direct · ~0.92
Father
William Murphy
b. ~1899
Source father
● Household
· direct · ~0.92
Father
William Murphy
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Genevieve Murphy
b. ~1900
Source mother
● Household
· direct · ~0.92
Mother
Genevieve Murphy
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Murphy
Daughter · 1940 · age 20 · b. ~1920 · Missouri
★ You are viewing this record
Sibling
Billy Murphy
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Murphy
Sibling · 1940 · age 12
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
37 people indexed on this census page (nara:1940:m-t0627-02208-00072)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Francis M Williams | 38 | Head | Salesman | Missouri |
| 42 | Marion Williams | 33 | Wife | — | Missouri |
| 43 | Francis Jr Williams | 17 | Son | — | Missouri |
| 44 | Jeanne L Williams | 12 | Daughter | — | Missouri |
| 45 | Clinton J Williams | 8 | Son | — | Missouri |
| 49 | Katherine Nelson | 25 | Roomer | Sales Girl | Missouri |
| 50 | Henry Morgenthaler | 59 | Head | Molder | Missouri |
| 51 | Annie Morgenthaler | 40 | Wife | — | Missouri |
| 52 | Elizabeth D Harrison | 66 | Head | — | Missouri |
| 53 | Herbert Harrison | 62 | Uncle | — | Missouri |
| 54 | Robert P Dunn | 73 | Head | President | Missouri |
| 55 | Agnes Dunn | 68 | Wife | — | Missouri |
| 56 | Dorothy Dunn | 32 | Daughter | — | Missouri |
| 57 | Francis Powers | 36 | Head | Fireman | Missouri |
| 58 | Catherine Powers | 33 | Wife | — | Missouri |
| 59 | Catherine Powers | 13 | Daughter | — | Missouri |
| 60 | Francis Powers | 11 | Son | — | Missouri |
| 61 | Brendan Powers | 8 | Son | — | Missouri |
| 62 | Diane Powers | 7 | Daughter | — | Missouri |
| 63 | Martin Powers | 4 | Son | — | Missouri |
| 64 | Vada Simpson | 31 | Lodger | Salesgirl | Illinois |
| 65 | Stella Simpson | 27 | Lodger | Salesgirl | Illinois |
| 66 | E. Roy Campbell | 25 | Head | Room Clerk | Missouri |
| 67 | Mabel Campbell | 25 | Wife | Statistical Clerk | Iowa |
| 68 | Jane Greeley | 36 | Head | — | — |
| 69 | Estelle Greeley | 34 | Partner | — | — |
| 70 | Josephine Reesor | 57 | Head | — | Missouri |
| 71 | Richard Mooney | 36 | Son | Stagehand | Missouri |
| 72 | Marcella Mooney | 33 | Daughter | Packer | Missouri |
| 73 | Josephine Mooney | 31 | Daughter | Packer | Missouri |
| 74 | Leo Mooney | 28 | Son | Truck Driver | Illinois |
| 75 | Evelyn Reesor | 21 | Daughter | Telephone Operator | Missouri |
| 76 | William T Murphy | 71 | Head | Stationary Engineer | Missouri |
| 77 | Genevieve Murphy | 51 | Wife | — | Missouri |
| 78 | Mary Murphy THIS PERSON | 20 | Daughter | Model | Missouri |
| 79 | Patricia Murphy | 12 | Daughter | — | Missouri |
| 80 | Billy Murphy | 4 | Son | — | Missouri |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)