WM
Walter Murphy — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this Walter Murphy across the 1920, 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed), with identified parents Isabell & Walter — first a son (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Murphy |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Occupation | Estimator |
| Industry | Elec Mfg |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Estimator |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1918 |
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 Walter | Age | Birth yr |
|---|---|---|---|---|
| Walter Murphy | Head | — | 41 | ~1899 |
| Clifford Murphy | Son | — | 20 | ~1920 |
| Walter Murphy | Son | — | 22 | ~1918 |
| Marcel Murphy | Son | — | 15 | ~1925 |
| Isabelle Murphy | Spouse | — | 33 | ~1907 |
Census Appearances
1920
St Louis, …
Son, age 2
St Louis, Missouri · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| 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 |
1930
St Louis, …
Son, age 12
St Louis, Missouri · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Walter Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Son, age 22
St.-Louis-City-County, Missouri · implied b. ~1918 — 5 household members
| Surname | Murphy |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis City |
| Occupation | Estimator |
| Industry | Elec Mfg |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | H-4 |
| 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 Walter Murphy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Isabell Murphy (~0.92 confidence) and father Walter Murphy (~0.92 confidence) and mother Isabelle Murphy (~0.60 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.81
Mother
Isabell Murphy
b. ~1897
Source mother
● Household
· direct · ~0.92
Father
Walter Murphy
b. ~1899
Source father
● Household
· direct · ~0.92
Mother
Isabelle Murphy
b. ~1907
Source mother
● Household
· direct · ~0.6
This person
Anchor record
Walter Murphy
Son · 1940 · age 22 · b. ~1918 · Missouri
★ You are viewing this record
Sibling
Clifford Murphy
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marcel Murphy
Sibling · 1940 · age 15
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-t0627-02210-00266)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George Engelhardt | 32 | Head | Machinist | Missouri |
| 2 | Edith Engelhardt | 32 | Wife | Waitress | Missouri |
| 3 | Mary Engelhardt | 2 | Daughter | — | Missouri |
| 4 | Marie Nenninger | 58 | Aunt | — | Missouri |
| 5 | Joseph Jackson | 65 | Head | Printer | Missouri |
| 6 | Josephine Jackson | 54 | Wife | — | Missouri |
| 7 | Mary D. Jackson | 18 | Daughter | Saleslady | Missouri |
| 8 | Kathleen Jackson | 16 | Daughter | — | Missouri |
| 9 | William Wells | 45 | Head | Salesman | Missouri |
| 10 | Edna Wells | 35 | Wife | — | Missouri |
| 11 | Ronald Wells | 13 | Son | — | Missouri |
| 12 | Harlan Wells | 9 | Son | — | Missouri |
| 13 | Herbert Thomas | 49 | Head | Carpenter | New York |
| 14 | Alice Thomas | 48 | Wife | — | Missouri |
| 15 | Alice Thomas | 21 | Daughter | Stenographer | Missouri |
| 16 | Margaret Thomas | 12 | Daughter | — | Missouri |
| 17 | George Hodges | 59 | Head | Clerk | Missouri |
| 18 | Anna Hodges | 51 | Wife | — | Iowa |
| 19 | Helen Hodges | 15 | Daughter | — | Missouri |
| 20 | Walter Murphy | 41 | Head | Carpenter | Missouri |
| 21 | Isabelle Murphy | 33 | Wife | — | Missouri |
| 22 | Walter Murphy THIS PERSON | 22 | Son | Estimator | Missouri |
| 23 | Clifford Murphy | 20 | Son | Time Keeper | Missouri |
| 24 | Marcel Murphy | 15 | Son | — | Missouri |
| 25 | John Varone | 58 | Head | Chauffeur | Missouri |
| 26 | Edith Varone | 50 | Wife | — | Nebraska |
| 27 | Guy Young | 47 | Head | Chauffeur | Missouri |
| 28 | Mary Young | 48 | Wife | — | Missouri |
| 29 | Guy Young | 23 | Son | Assembler | Missouri |
| 30 | Mara Young | 18 | Daughter | Factory Worker | Missouri |
| 31 | May Fern Young | 15 | Daughter | — | Missouri |
| 32 | Iris Young | 14 | Daughter | — | Missouri |
| 33 | Gallina Young | 12 | Daughter | — | Missouri |
| 34 | Ida May Young | 9 | Daughter | — | Missouri |
| 35 | Joseph Martin | 55 | Head | Laborer | Tennessee |
| 36 | Lillian Martin | 48 | Wife | — | Tennessee |
| 37 | John W. Martin | 14 | Son | — | Missouri |
| 38 | William Mitchell | 28 | Head | Chauffeur | Missouri |
| 39 | Merle Mitchell | 31 | Wife | — | Missouri |
| 40 | Velma Mitchell | 12 | Daughter | — | Missouri |
Pedigree Summary
Walter + 2 siblings
Gen 1 · 3 parents
~0.81
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)