GN
George Nichols — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this George Nichols across the 1910, 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents Emma & Emma — 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 | Nichols |
| Given Name | George |
| 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 | Agent |
| Industry | manufacturers products |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2786 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Agent |
| 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 George | Age | Birth yr |
|---|---|---|---|---|
| Anne Nichols | Spouse | — | 39 | ~1901 |
| George Nichols | Head | — | 42 | ~1898 |
| George Nichols | Son | — | 12 | ~1928 |
Census Appearances
1910
San Francisco, …
Son, age 12
San Francisco, California · implied b. ~1898 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nichols |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | New York |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
San Francisco, …
Son, age 21
San Francisco, California · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nichols |
| Given Name | George V |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | New York |
| Occupation | Salesman |
| Industry | Furniture Co |
| 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, …
Head, age 32
San Francisco, California · implied b. ~1898 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nichols |
| Given Name | George |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 22 |
| Father's Birthplace | California |
| Mother's Birthplace | New York |
| Occupation | Salesman |
| Industry | Upholstery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 70.50 |
| 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 | Nichols |
| Given Name | George |
| 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 | Agent |
| Industry | manufacturers products |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2786 |
| Highest Grade | H 4 |
| 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 George Nichols across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Emma Nichols (~0.92 confidence) and mother Emma Nichols (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Emma Nichols
b. ~1866
Source mother
● Household
· direct · ~0.92
Mother
Emma Nichols
b. ~1867
Source mother
● Household
· direct · ~0.92
This person
Anchor record
George Nichols
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
40 people indexed on this census page (nara:1940:m-t0627-00321-00273)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Wing Chan | 49 | Head | Attorney | California |
| 42 | Lily Chan | 46 | Wife | — | California |
| 43 | Mary Finn | 70 | Head | — | New York |
| 44 | Marjorie Hildebrand | 23 | Servant | Servant | California |
| 45 | Celia Neiman | 51 | Head | — | Hungary |
| 46 | Eugene Neiman | 26 | Son | Photographer | Ohio |
| 47 | Marvin Neiman | 24 | Son | Stenographer | Ohio |
| 48 | Stanley Neiman | 21 | Son | Clerk | Ohio |
| 49 | Charles Eisenberg | 40 | Head | Salesman | California |
| 50 | Betty Eisenberg | 32 | Wife | — | Illinois |
| 51 | Rochelle Eisenberg | 4 | Daughter | — | California |
| 52 | Aaron Terner | 50 | Head | Auditor | Missouri |
| 53 | Dora Terner | 43 | Wife | — | Georgia |
| 54 | Mary Terner | 21 | Daughter | New Worker | Missouri |
| 55 | Sadie Stark | 45 | Sister | — | Georgia |
| 56 | Raymond Behacco | 41 | Head | Salesman | California |
| 57 | Arvilla Behacco | 36 | Wife | Clerk | Missouri |
| 58 | Jacob Gervis | 66 | Head | Sexton | California |
| 59 | Rose Gervis | 66 | Wife | — | California |
| 60 | Pauline Gervis | 35 | Daughter | Secretary | California |
| 61 | Mildred Gervis | 33 | Daughter | Secretary | California |
| 62 | Lloyd Kilkenny | 44 | Head | Salesman | California |
| 63 | Rose Kilkenny | 44 | Wife | Bookkeeper | California |
| 64 | James Mcmanus | 51 | Head | Salesman | California |
| 65 | Nell Mcmanus | 50 | Wife | — | California |
| 66 | Ella Landers | 47 | Head | — | New York |
| 67 | Isadore Rosenberg | 36 | Nephew | Salesman | Honolulu |
| 68 | Joseph C. Wienholz | 58 | Lodger | Machine Operator | California |
| 69 | Thomas Joyce | 50 | Lodger | Janitor | California |
| 70 | John Barry | 38 | Head | Sales Representative | Illinois |
| 71 | Naomi Barry | 39 | Wife | — | Pennsylvania |
| 72 | Harlan Barry | 1 | Son | — | Illinois |
| 73 | Edwin Bly | 50 | Head | Civil Engineer | California |
| 74 | Dorette Bly | 48 | Wife | — | Washington |
| 75 | Janet Bly | 18 | Daughter | — | California |
| 76 | Edwin Jr. Bly | 14 | Son | — | California |
| 77 | Regina Jones | 71 | Mother-in-law | — | Washington |
| 78 | George Nichols THIS PERSON | 42 | Head | Agent | California |
| 79 | Anne Nichols | 39 | Wife | — | California |
| 80 | George Jr. Nichols | 12 | Son | — | California |
Pedigree Summary
George
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)