JM
James Murphy — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this James Murphy across the 1910, 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents John & William — first a son (b.~1906), then head of a 5-person household.
Age 34
b. ~1906
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | MURPHY |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | SAN FRANCISCO |
| 1935 Residence (County) | SAN FRANCISCO |
| Additional Details | |
| Industry | 0 |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1906 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Agnes Murphy | Head | — | 66 | ~1874 |
| Bernard Swanson | Son | — | 16 | ~1924 |
| James Murphy | Son | — | 34 | ~1906 |
| Hubert Swanson | Son | — | 19 | ~1921 |
| Hanna Swanson | Spouse | — | 52 | ~1888 |
Census Appearances
1910
San Francisco, …
Son, age 5
San Francisco, California · implied b. ~1905 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | James D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| 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 14
San Francisco, California · implied b. ~1906 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| 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 23
San Francisco, California · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Cashier |
| Industry | Cemetery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Son, age 34
San-Francisco-County, California · implied b. ~1906 — 5 household members
| Surname | MURPHY |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | SAN FRANCISCO |
| 1935 Residence (County) | SAN FRANCISCO |
| Industry | 0 |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| 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 James Murphy across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Murphy (~0.92 confidence) and father William Murphy (~0.92 confidence) and mother Mary Murphy (~0.92 confidence) and mother Agnes Murphy (~0.92 confidence) and father John Murphy (~0.81 confidence) and mother Jane Murphy (~0.81 confidence) and mother Hanna Swanson (~0.92 confidence). The pedigree spans 2 generations with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.89
Father
John Murphy
b. ~1859
Source father
● Household
· direct · ~0.92
Father
William Murphy
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Mary Murphy
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Agnes Murphy
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
John Murphy
b. ~1837
Source mother>father
● Household
· direct · ~0.81
Mother
Jane Murphy
b. ~1847
Source mother>mother
● Household
· direct · ~0.81
Mother
Hanna Swanson
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Murphy
Son · 1940 · age 34 · b. ~1906 · California
★ You are viewing this record
Sibling
Hubert Swanson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernard Swanson
Sibling · 1940 · age 16
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 — 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-t0627-00301-00690)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Daniel O'Hara | 38 | Head | Fireman | Massachusetts |
| 2 | Elizabeth O'Hara | 34 | Wife | — | Montana |
| 3 | Catherine O'Hara | 14 | Daughter | — | California |
| 4 | Daniel J. O'Hara | 13 | Son | — | California |
| 5 | Thomas O'Hara | 10 | Son | — | California |
| 6 | Patricia O'Hara | 8 | Daughter | — | California |
| 7 | Helen O'Hara | 5 | Daughter | — | California |
| 8 | Gerald O'Hara | 3 | Son | — | California |
| 9 | Timothy O'Hara | 1 | Son | — | California |
| 10 | Agnes Murphy | 66 | Head | — | Ireland |
| 11 | James Murphy THIS PERSON | 34 | Son | — | California |
| 12 | Hanna Swanson | 52 | Wife | — | Finland |
| 13 | Hubert Swanson | 19 | Son | Bookkeeper | California |
| 14 | Bernard Swanson | 16 | Son | — | California |
| 15 | Emil Forsman | 53 | Head | Longshoreman | Finland |
| 16 | Anna Forsman | 51 | Wife | — | Finland |
| 17 | Violet Kaissa | 26 | Daughter | — | California |
| 18 | William Kaissa | 31 | Son-in-law | Clerk | New York |
| 19 | Charles V. Lodge | 40 | Head | Mechanic | California |
| 20 | Juanita Lodge | 35 | Wife | — | California |
| 21 | — | None | — | — | — |
| 22 | Winslow Hallett | 65 | Head | Chauffeur | California |
| 23 | Evelyn Hallett | 37 | Wife | — | California |
| 24 | Patricia Hallett | 5 | Daughter | — | California |
| 25 | William Hallett | 2 | Son | — | California |
| 26 | Evelyn Hallett | 0 | Daughter | — | California |
| 27 | James Fahey | 66 | Head | Sewer Dept | Ireland |
| 28 | Annie Fahey | 60 | Wife | — | Ireland |
| 29 | Roger Fahey | 29 | Son | Hod-Carrier | California |
| 30 | Mary Fahey | 28 | Daughter | Bookkeeper | California |
| 31 | Martin Fahey | 25 | Son | Carpenter | California |
| 32 | James Fahey | 21 | Son | Cabinet-Maker | California |
| 33 | Eleanor Fahey | 16 | Daughter | — | California |
| 34 | Anthony Grassel | 31 | Head | Fireman | Michigan |
| 35 | Myrtle Grassel | 30 | Wife | — | California |
| 36 | Myrtle A. Grassel | 7 | Daughter | — | California |
| 37 | Dale Grassel | 5 | Daughter | — | California |
| 38 | Edward Travis | 72 | Head | — | Massachusetts |
| 39 | Serena Travis | 60 | Wife | — | California |
| 40 | August Fodge | 53 | Head | — | Finland |
Related Census Records
Pedigree Summary
James + 2 siblings
Gen 1 · 5 parents
~0.92
Gen 2 · 2 grandparents
~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)