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Robert Graham — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Robert Graham across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents Robert & Robert — first a son (b.~1918), then head of a 6-person household.
Age 22
b. ~1918
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Graham |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | Clerk |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1440 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Clerk |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1918 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Graham | Head | — | 55 | ~1885 |
| James Graham | Son | — | 13 | ~1927 |
| Paul Graham | Son | — | 19 | ~1921 |
| John Graham | Son | — | 15 | ~1925 |
| Robert Graham | Son | — | 22 | ~1918 |
| Mary Graham | Spouse | — | 44 | ~1896 |
Census Appearances
1920
San Francisco, …
Son, age 1
San Francisco, California · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | Robert F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Michigan |
| Mother Tongue | English |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Son, age 12
San Francisco, California · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | Robert Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Son, age 22
San-Francisco-County, California · implied b. ~1918 — 6 household members
| Surname | Graham |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Occupation | Clerk |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1440 |
| Highest Grade | Hs 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 Robert Graham across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Graham (~0.92 confidence) and father Robert Graham (~0.92 confidence) and mother Mary Graham (~0.92 confidence) and mother Mary Graham (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Graham
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Robert Graham
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Mary Graham
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Mary Graham
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Graham
Son · 1940 · age 22 · b. ~1918 · California
★ You are viewing this record
Sibling
John Graham
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Graham
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Graham
Sibling · 1940 · age 19
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-t0627-00308-00327)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Daniel Moynihan | 43 | Head | Salesman | Eire |
| 42 | William D. Van Pelt | 33 | Head | Baker | Illinois |
| 43 | Mary E. Mccloy | 38 | Head | — | Illinois |
| 44 | Vina Dahlin | 76 | Head | — | California |
| 45 | Anna F. Fisher | 31 | Head | Bookkeeper | California |
| 46 | Armand D. Chatelain | 41 | Head | — | Iowa |
| 47 | Tillie Chatelain | 54 | Wife | Stayer | California |
| 48 | Lotta E. Ford | 61 | Head | Housekeeper | Wisconsin |
| 49 | George F. Mackey | 62 | Head | Manager | California |
| 50 | Ann F. Mackey | 56 | Wife | — | California |
| 51 | Neil G. Mackey | 28 | Son | Board Of Equalization | California |
| 52 | Claire K. Mackey | 26 | Daughter | P.B.X. Operator | California |
| 53 | William J. Mackey | 21 | Son | Clerk | California |
| 54 | Ruth M. Mackey | 23 | Daughter | — | California |
| 55 | Rita F. Mackey | 15 | Daughter | — | California |
| 56 | Robert H. Graham | 55 | Head | Foreman-Janitor | Scotland |
| 57 | Mary O. Graham | 44 | Wife | — | Michigan |
| 58 | Robert Graham THIS PERSON | 22 | Son | Clerk | California |
| 59 | Paul Graham | 19 | Son | Delivery | California |
| 60 | John Graham | 15 | Son | — | California |
| 61 | James Graham | 13 | Son | — | California |
| 62 | Elizabeth C. Scully | 60 | Head | — | California |
| 63 | Frank E. Scully | 31 | Son | Warehouseman | California |
| 64 | Herbert L. Britton | 30 | Son-in-law | Lithographer | Canada |
| 65 | Cecile E. Britton | 28 | Daughter | — | California |
| 66 | Herbert L. Britton | 0 | Grandson | — | California |
| 67 | Earl W. Duffey | 39 | Head | Service Foreman | California |
| 68 | Selma E. Duffey | 39 | Wife | — | Illinois |
| 69 | Kenneth E. Duffey | 15 | Son | — | California |
| 70 | Ann N. Duffey | 9 | Daughter | — | California |
| 71 | Thomas E. Dartland | 40 | Head | Inspector | California |
| 72 | Alice S. Dartland | 37 | Wife | — | California |
| 73 | Hugh P. Dartland | 16 | Son | — | California |
| 74 | Thomas L. Dartland | 14 | Son | — | California |
| 75 | Maureen Dartland | 5 | Daughter | — | California |
| 76 | — | 37 | — | Painter | California |
| 77 | — | 37 | Wife | — | California |
| 78 | Robert O. Spencer | 24 | Head | Chauffeur | California |
| 79 | Carmen J. Spencer | 21 | Wife | Waitress | Texas |
| 80 | Left By Mistake | None | — | — | — |
Related Census Records
Pedigree Summary
Robert + 3 siblings
Gen 1 · 4 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)