WG
William Gibson — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this William Gibson across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents Wilfred & Marie — first a son (b.~1916), then head of a 10-person household.
Age 24
b. ~1916
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Gibson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco City |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | Floor Layer |
| Industry | Private Const |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 308 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Floor Layer |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1916 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Clarence Gibson | Head | — | 47 | ~1893 |
| Florence Gibson | Other | — | 23 | ~1917 |
| Frank Gibson | Other | — | 3 | ~1937 |
| Louis Gibson | Other | — | 5 | ~1935 |
| Henry Gibson | Other | — | 1 | ~1939 |
| Robert Gibson | Son | — | 14 | ~1926 |
| William Gibson | Son | — | 24 | ~1916 |
| Louis Gibson | Son | — | 29 | ~1911 |
| Clarence Gibson | Son | — | 21 | ~1919 |
| Marie Gibson | Spouse | — | 46 | ~1894 |
Census Appearances
1920
San Francisco, …
Son, age 3
San Francisco, California · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gibson |
| Given Name | Wilfred C |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | California |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Son, age 13
San Francisco, California · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gibson |
| Given Name | Wilfred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Son, age 24
San-Francisco-County, California · implied b. ~1916 — 10 household members
| Surname | Gibson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco City |
| 1935 Residence (County) | San Francisco |
| Occupation | Floor Layer |
| Industry | Private Const |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 308 |
| Highest Grade | No 8 |
| 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 Gibson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Wilfred Gibson (~0.92 confidence) and mother Marie Gibson (~0.92 confidence) and mother Mary Gibson (~0.92 confidence) and father Clarence Gibson (~0.92 confidence) and mother Marie Gibson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Wilfred Gibson
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Marie Gibson
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Mary Gibson
b. ~1890
Source mother
● Household
· direct · ~0.92
Father
Clarence Gibson
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Marie Gibson
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Gibson
Son · 1940 · age 24 · b. ~1916 · California
★ You are viewing this record
Sibling
Louis Gibson
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Gibson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Gibson
Sibling · 1940 · age 21
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
39 people indexed on this census page (nara:1940:m-t0627-00301-00613)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary C Reilly | 72 | Head | Laundress | Massachusetts |
| 43 | Robert Robinson | 37 | Head | Driver | Texas |
| 44 | Celia Robinson | 34 | Wife | — | Nicaragua |
| 45 | Grace Robinson | 8 | Daughter | — | California |
| 46 | Robert Jr Robinson | 7 | Son | — | California |
| 47 | Franklin Hondelin | 27 | Head | Presser Oper | California |
| 48 | Henrietta Hondelin | 24 | Wife | — | California |
| 49 | Larry Hondelin | 2 | Son | — | California |
| 50 | Herman Reddehose | 29 | Head | Shipping Clerk | California |
| 51 | Penelope Reddehose | 31 | Wife | — | California |
| 52 | Mary Reddehose | 15 | Daughter | — | California |
| 53 | Joan Reddehose | 7 | Daughter | — | California |
| 54 | Sam Navarra | 30 | Head | Salesman | California |
| 55 | Betty Navarra | 26 | Wife | — | California |
| 56 | Barbara Jean Navarra | 4 | Daughter | — | California |
| 57 | Clarence Gibson | 47 | Head | Laborer | California |
| 58 | Marie Gibson | 46 | Wife | — | California |
| 59 | William Gibson THIS PERSON | 24 | Son | Floor Layer | California |
| 60 | Clarence J Gibson | 21 | Son | New Worker | California |
| 61 | Robert Gibson | 14 | Son | — | California |
| 62 | Louis A Gibson | 29 | Son | Teamster | California |
| 63 | Florence Gibson | 23 | Daughter-in-law | — | California |
| 64 | Louis Gibson | 5 | Grandson | — | California |
| 65 | Frank Gibson | 3 | Grandson | — | California |
| 66 | Henry Gibson | 1 | Grandson | — | California |
| 67 | Mary Frey | 75 | Head | — | Missouri |
| 68 | A B Holden | 53 | Daughter | Fur Finisher | Missouri |
| 69 | Jack Samson | 25 | Head | Truck Driver | California |
| 70 | Gertrude Samson | 26 | Wife | — | California |
| 71 | Roberta Samson | 3 | Daughter | — | California |
| 72 | Carol Samson | 2 | Daughter | — | California |
| 73 | Jack Jr Samson | 0 | Son | — | California |
| 74 | Laura Collins | 69 | Head | — | Canada English |
| 75 | George Collins | 35 | Son | Bar Tender | California |
| 76 | Ernest Cabral | 25 | Head | Secretary | Hawaii |
| 77 | Flora Cabral | 21 | Wife | — | Costa Rica |
| 78 | Minnie Jameson | 73 | Head | — | Russia |
| 79 | Charles A Jameson | 46 | Son | Painter | California |
| 80 | Henry Jameson | 31 | Son | Barrel Press Oper | California |
Pedigree Summary
William + 3 siblings
Gen 1 · 5 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)