WM
William Murphy — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this William Murphy across the 1910, 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents James & William — first a head (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Murphy |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | Paint maker |
| Industry | Paint Manufacturer |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Paint Maker |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1909 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Audrey Murphy | Daughter | — | 9 | ~1931 |
| William Murphy | Head | — | 31 | ~1909 |
| Althea Murphy | Spouse | — | 26 | ~1914 |
Census Appearances
1910
San Francisco, …
Son, age 1
San Francisco, California · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | William P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
San Francisco, …
Son, age 11
San Francisco, California · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Son, age 21
San Francisco, California · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| Age at First Marriage | S |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Clerk |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Head, age 31
San-Francisco-County, California · implied b. ~1909 — 3 household members
| Surname | Murphy |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Occupation | Paint maker |
| Industry | Paint Manufacturer |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 William Murphy across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Murphy (~0.92 confidence) and father William Murphy (~0.92 confidence) and mother Johanna Murphy (~0.92 confidence) and mother Margaret Murphy (~0.92 confidence) and mother Adeline Murphy (~0.92 confidence) and mother Margaret Murphy (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Murphy
b. ~1883
Source father
● Household
· direct · ~0.92
Father
William Murphy
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Johanna Murphy
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Margaret Murphy
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Adeline Murphy
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Margaret Murphy
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Murphy
Head · 1940 · age 31 · b. ~1909 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00309-00447)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herbert Trousdale | 23 | Son | Cameraman | California |
| 2 | Barbara Trousdale | 16 | Daughter | — | California |
| 3 | Wesly Fator | 9 | Nephew | — | California |
| 4 | Herbert Kneiss | 38 | Head | Floor Layer | California |
| 5 | Hilda Kneiss | 32 | Wife | — | California |
| 6 | Audry Kneiss | 13 | Daughter | — | California |
| 7 | Herbert Kneiss | 12 | Son | — | California |
| 8 | Robert Kneiss | 8 | Son | — | California |
| 9 | David R. Richards | 58 | Head | — | Ohio |
| 10 | Daisy M. Richards | 51 | Wife | — | Kansas |
| 11 | Gladys Richards | 25 | Daughter | Stenographer | California |
| 12 | Gustavus Weber | 70 | Head | Butcher | Germany |
| 13 | Margaret Weber | 60 | Wife | — | California |
| 14 | Jerome Mcsweeny | 24 | Lodger | Laborer | Ireland |
| 15 | Nellie King | 31 | Lodger | Nurse | California |
| 16 | Howard Swindell | 31 | Head | Bookkeeper | California |
| 17 | Agnes Swindell | 28 | Wife | — | California |
| 18 | Ann Swindell | 3 | Daughter | — | California |
| 19 | Walter Kent | 33 | Head | Janitor | New Zealand |
| 20 | Margaret Kent | 35 | Wife | — | California |
| 21 | Patricia J. Kent | 7 | Daughter | — | California |
| 22 | Donald W. Kent | 2 | Son | — | California |
| 23 | William Murphy THIS PERSON | 31 | Head | Paint Maker | California |
| 24 | Althea Murphy | 26 | Wife | — | California |
| 25 | Audrey Murphy | 9 | Daughter | — | California |
| 26 | John E. Sanders | 73 | Head | Switchman | California |
| 27 | Edwyn Halcomb | 35 | Head | Chauffer | Texas |
| 28 | Florence Halcomb | 28 | Wife | Clerk | England |
| 29 | David Halcomb | 5 | Son | — | California |
| 30 | Amelia Todd | 62 | Mother | — | England |
| 31 | Harry Collier | 67 | Head | Mechanic | California |
| 32 | Cora L. Collier | 59 | Wife | — | Pennsylvania |
| 33 | Mary Callahan | 52 | Head | — | Ireland |
| 34 | Patricia Callahan | 23 | Daughter | Bookkeeper | California |
| 35 | Eugene Callahan | 19 | Son | Gardner | California |
| 36 | Nora Callahan | 16 | Daughter | — | California |
| 37 | William Callahan | 14 | Son | — | California |
| 38 | Anton Osterholt | 34 | Head | Contractor | Germany |
| 39 | Mavis Osterholt | 30 | Wife | — | Germany |
| 40 | Angela Osterholt | 3 | Daughter | — | California |
Pedigree Summary
William
Gen 1 · 6 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)