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Henry Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Henry Nelson across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents Nicholas & Anna — first a head (b.~1898), then head of a 3-person household.
Age 42
b. ~1898
Male
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Nelson |
| Given Name | Henry S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | Fireman |
| Industry | S.F.F. Dept |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 600 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Fireman |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1898 |
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 Henry | Age | Birth yr |
|---|---|---|---|---|
| Florence Nelson | Daughter | — | 18 | ~1922 |
| Henry Nelson | Head | — | 42 | ~1898 |
| Florence Nelson | Spouse | — | 38 | ~1902 |
Census Appearances
1920
San Francisco, …
Son, age 22
San Francisco, California · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Harry C |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | clerk |
| Industry | transportation |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Son, age 32
San Francisco, California · implied b. ~1898 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Publisher |
| Industry | Newspaper |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Head, age 42
San-Francisco-County, California · implied b. ~1898 — 3 household members
| Surname | Nelson |
| Given Name | Henry S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Occupation | Fireman |
| Industry | S.F.F. Dept |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 600 |
| 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 Henry Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Nicholas Nelson (~0.92 confidence) and mother Anna Nelson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Nicholas Nelson
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Anna Nelson
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Henry Nelson
Head · 1940 · age 42 · b. ~1898 · 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
39 people indexed on this census page (nara:1940:m-t0627-00312-00437)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John H Bonker | 39 | Head | Printer | Oklahoma |
| 2 | Hazel K Bonker | 42 | Wife | — | California |
| 3 | Dan Barsotti | 47 | Head | Butcher | Italy |
| 4 | Roberta Barsotti | 38 | Wife | Bookkeeper | California |
| 5 | Andrew Stevenson | 50 | Head | Pattern Clerk | Scotland |
| 6 | Martha Stevenson | 48 | Wife | — | Scotland |
| 7 | Ann Stevenson | 28 | Daughter | Operator | Scotland |
| 8 | Andrew Jr Stevenson | 25 | Son | Warehouseman | Scotland |
| 9 | Arthur Swanson | 44 | Head | Salesman | California |
| 10 | Eleanor Swanson | 47 | Wife | — | Michigan |
| 11 | Robert Swanson | 21 | Son | Salesman | Illinois |
| 12 | Harlan Swanson | 19 | Son | — | Georgia |
| 13 | Grant Swanson | 12 | Son | — | California |
| 14 | Adolph F Thomas | 40 | Head | Glass Artist | Illinois |
| 15 | Sophie Thomas | 36 | Wife | — | Iowa |
| 16 | Helen Thomas | 35 | Daughter | — | Iowa |
| 18 | Royal A Boyd | 53 | Head | Salesman | California |
| 19 | Genevieve Boyd | 52 | Wife | — | Michigan |
| 20 | Royal Jr Boyd | 25 | Son | Clerk | California |
| 21 | Donald Boyd | 23 | Son | Clerk | California |
| 22 | Nellie Shutts | 75 | Mother-in-law | — | Michigan |
| 23 | Charles S Payne | 43 | Head | Restaurant | England |
| 24 | Julia Payne | 41 | Wife | — | Canada Brit |
| 25 | Donald Payne | 12 | Son | — | California |
| 26 | Robert Payne | 11 | Son | — | California |
| 27 | Charles Payne | 7 | Son | — | California |
| 28 | George Charnock | 79 | Father-in-law | — | England |
| 29 | Thomas Bruce | 36 | Head | Salesman | Scotland |
| 30 | Gladys Bruce | 37 | Wife | Saleslady | Colorado |
| 31 | Dora Elvira Lutz | 57 | Mother-in-law | Saleslady | Kansas |
| 32 | Charles William James | 87 | Grandfather-in-law | — | Maryland |
| 33 | George A Jarrett | 46 | Head | Reporter | California |
| 34 | Josephine C Jarrett | 44 | Wife | — | Washington |
| 35 | Lola Jarrett | 87 | Mother | — | California |
| 36 | Roy Galliher | 59 | Head | Contractor | Iowa |
| 37 | Dessie Galliher | 65 | Wife | — | California |
| 38 | Henry S Nelson THIS PERSON | 42 | Head | Fireman | California |
| 39 | Florence Nelson | 38 | Wife | — | California |
| 40 | Florence M Nelson | 18 | Daughter | — | California |
Pedigree Summary
Henry
Gen 1 · 2 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)