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Robert Griffith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Robert Griffith across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Ben & Ben — first a son (b.~1916), then head of a 8-person household.
Age 24
b. ~1916
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Griffith |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Evanston City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Timekeeper |
| Industry | Manufacturing |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 500 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Timekeeper |
| Township / Ward | Evanston 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Ben Griffith | Head | — | 62 | ~1878 |
| Robert Griffith | Son | — | 24 | ~1916 |
| June Griffith | Daughter | — | 12 | ~1928 |
| Kenneth Griffith | Son | — | 16 | ~1924 |
| Albert Griffith | Son | — | 21 | ~1919 |
| George Griffith | Son | — | 14 | ~1926 |
| Virginia Griffith | Daughter | — | 19 | ~1921 |
| Eunice Griffith | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Cook, Illinois
Son, age 4
Cook, Illinois · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffith |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Cook, Illinois
Son, age 13
Cook, Illinois · implied b. ~1917 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffith |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Cook-County, Illinois
Son, age 24
Cook-County, Illinois · implied b. ~1916 — 8 household members
| Surname | Griffith |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Evanston City |
| 1935 Residence (County) | Cook |
| Occupation | Timekeeper |
| Industry | Manufacturing |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 500 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Griffith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ben Griffith (~0.92 confidence) and father Ben Griffith (~0.92 confidence) and mother Emma Griffith (~0.92 confidence) and mother Eunice Griffith (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ben Griffith
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Ben Griffith
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Emma Griffith
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Eunice Griffith
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Griffith
Son · 1940 · age 24 · b. ~1916 · Illinois
★ You are viewing this record
Sibling
Virginia Griffith
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Griffith
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Griffith
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
June Griffith
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Griffith
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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00778-00234)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sanger | None | — | — | — |
| 42 | Fred Sanger | None | — | — | — |
| 43 | Samuel Smallwood | 43 | Head | Salesman | Colorado |
| 44 | Myrtle Smallwood | 32 | Wife | Waitress | Colorado |
| 45 | Ethel R. Sellars | 46 | Head | Superintendent | Canada |
| 46 | Elsa Cunningham | 50 | Lodger | Clerk | Illinois |
| 47 | Hugh Ann | 31 | Head | Railroad Clerk | Ireland |
| 48 | Lillian Ann | 21 | Wife | Clerk | Illinois |
| 49 | Victor Holland | 43 | Head | Executive | Illinois |
| 50 | Amanda Holland | 57 | Wife | — | Illinois |
| 51 | Charles Meinken | 24 | Head | Salesman | Colorado |
| 52 | Lois Meinken | 25 | Wife | — | Illinois |
| 53 | Leonard Luke | 42 | Head | Engineer | Kansas |
| 54 | Andrew Hess | 26 | Head | Engineer | Colorado |
| 55 | Grace B. Hess | 25 | Wife | — | South Dakota |
| 56 | Anthony J. Jobst | 23 | Head | Salesman | Illinois |
| 57 | Marie Jobst | 23 | Wife | Operator | Illinois |
| 58 | Samuel Bemis | 27 | Head | Mechanic | Illinois |
| 59 | Lotta Claire Bemis | 30 | Lodger | — | North Dakota |
| 60 | Hedwig Boberis | 24 | Wife | Cashier | South Dakota |
| 61 | Henry V. Meinken | 27 | Head | — | Illinois |
| 62 | Elizabeth Meinken | 23 | Wife | Stenographer | Illinois |
| 63 | Paul Rollins | 75 | Head | Bookkeeper | New York |
| 64 | Amanda Rollins | 74 | Wife | — | Kentucky |
| 65 | Alex Ross | 55 | Head | Janitor | New York |
| 66 | Lottie Ross | 46 | Wife | — | Ohio |
| 67 | E. H. Reid | 75 | Head | — | Pennsylvania |
| 68 | Elias M. Newberry | 66 | Head | — | Nebraska |
| 69 | Jane E. Newberry | 37 | Daughter | Secretary | Illinois |
| 70 | Elizabeth C. Wester | 78 | Head | — | Wisconsin |
| 71 | Ben Griffith | 62 | Head | Mechanic | Wisconsin |
| 72 | Eunice Griffith | 46 | Wife | Maid | Wisconsin |
| 73 | Robert Griffith THIS PERSON | 24 | Son | Timekeeper | Wisconsin |
| 74 | Albert Griffith | 21 | Son | Laborer | Wisconsin |
| 75 | Virginia Griffith | 19 | Daughter | Servant | Wisconsin |
| 76 | Kenneth Griffith | 16 | Son | Delivery Boy | Illinois |
| 77 | George Griffith | 14 | Son | — | Illinois |
| 78 | June Griffith | 12 | Daughter | — | Illinois |
| 79 | Herd | None | — | — | — |
| 80 | Stanley P. Taylor | 40 | Head | Contractor | Illinois |
Pedigree Summary
Robert + 5 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)