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George Griffin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Rock-Island-County, Illinois
Our Model Tree links this George Griffin across the 1920, 1930 and 1940 US Censuses in Rock-Island-County, Illinois (XGBoost, ~Confirmed), with identified parents Mary & Mary — first a son (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rock-Island-County, Illinois |
| Surname | Griffin |
| Given Name | George E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Port Byron village |
| 1935 Residence (County) | Rock Island |
| Additional Details | |
| Occupation | Trucker |
| Industry | Implement factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 700 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Trucker |
| Township / Ward | Port Byron Village |
| Est. Birth Year | ~1919 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to George | Age | Birth yr |
|---|---|---|---|---|
| George Griffin | Head | — | 47 | ~1893 |
| Lewis Eckelberry | Other | — | 84 | ~1856 |
| Lester Griffin | Son | — | 13 | ~1927 |
| George Griffin | Son | — | 21 | ~1919 |
| Mary Griffin | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Rock Island, …
Son, age 1
Rock Island, Illinois · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | George G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Rock Island, …
Son, age 11
Rock Island, Illinois · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffing |
| Given Name | George E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Rock-Island-County, Illinois
Son, age 21
Rock-Island-County, Illinois · implied b. ~1919 — 5 household members
| Surname | Griffin |
| Given Name | George E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Port Byron village |
| 1935 Residence (County) | Rock Island |
| Occupation | Trucker |
| Industry | Implement factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 700 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Griffin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Griffin (~0.92 confidence) and mother Mary Griffin (~0.92 confidence) and father George Griffing (~0.92 confidence) and father George Griffin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Griffin
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Mary Griffin
b. ~1890
Source mother
● Household
· direct · ~0.92
Father
George Griffing
b. ~1892
Source father
● Household
· direct · ~0.92
Father
George Griffin
b. ~1894
Source father
● Household
· direct · ~0.92
This person
Anchor record
George Griffin
Son · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
Lester Griffin
Sibling · 1940 · age 13
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 — Rock-Island-County, Illinois
Open full size
1940 US Federal Census — Rock-Island-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00876-00014)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Colonel Dataworth | 22 | Head | Laborer | Illinois |
| 2 | Marianne Dataworth | 20 | Wife | — | Illinois |
| 3 | Linda K. Dataworth | 0 | Daughter | — | Illinois |
| 4 | Fred C. Filbert | 54 | Head | Carpenter | Illinois |
| 5 | Mary E. Filbert | 49 | Wife | — | Illinois |
| 6 | Robert Filbert | 19 | Son | News Driver | Illinois |
| 7 | Clarence W. Petersen | 49 | Head | Auto. Mechanic | Iowa |
| 8 | Fannie E. Petersen | 59 | Wife | — | Illinois |
| 9 | Rilla B. Candler | 72 | Head | — | Illinois |
| 10 | Lloyd B. Ross | 54 | Head | Laborer | Illinois |
| 11 | Cordelia Ross | 49 | Wife | — | Illinois |
| 12 | Melvin L. Ross | 24 | Son | Clerk, Gen. | Iowa |
| 13 | George A. Griffin | 47 | Head | Assembler | Illinois |
| 14 | Mary E. Griffin | 50 | Wife | — | Illinois |
| 15 | George E. Griffin THIS PERSON | 21 | Son | Trucker | Illinois |
| 16 | Lester E. Griffin | 13 | Son | — | Illinois |
| 17 | Lewis H. Eckelberry | 84 | Father-in-law | — | Ohio |
| 18 | Robert L. Atkinson | 42 | Head | Express Clerk | Illinois |
| 19 | Hazel A. Atkinson | 38 | Wife | — | Iowa |
| 20 | Arlene M. Atkinson | 19 | Daughter | Mail Sort. Clerk | Illinois |
| 21 | Robert L. Jr. Atkinson | 18 | Son | New Worker | Illinois |
| 22 | Lawrence E. Atkinson | 11 | Son | — | Illinois |
| 23 | Melvin J. Atkinson | 3 | Son | — | Illinois |
| 24 | Roy W. Redden | 42 | Head | Millwright | Missouri |
| 25 | Lena C. Redden | 41 | Wife | — | Missouri |
| 26 | Dorothy D. Redden | 20 | Daughter | Clerk, Recept. | Oklahoma |
| 27 | Raymond W. Redden | 18 | Son | Janitor | Oklahoma |
| 28 | Delphia F. Redden | 16 | Daughter | — | Oklahoma |
| 29 | Reona V. Redden | 9 | Daughter | — | Missouri |
| 30 | E. Frank Pearce | 69 | Head | Farmer | Illinois |
| 31 | Mildred Pearce | 36 | Daughter | — | Kansas |
| 32 | Maurice Pearce | 34 | Son | Farm Laborer | Kansas |
| 33 | William Jennings | 54 | Head | Laborer | Nebraska |
| 34 | William B. Miller | 50 | Head | Monument Dealer | Illinois |
| 35 | Jess Ann Miller | 50 | Wife | — | Missouri |
| 36 | William B. Jr. Miller | 19 | Son | Apprentice | Missouri |
| 37 | Barbara Miller | 18 | Daughter | New Worker | Illinois |
| 38 | George H. Williams | 41 | Head | Section Foreman | Illinois |
| 39 | Lillian Williams | 38 | Wife | — | Kansas |
| 40 | Jeanette Williams | 15 | Daughter | — | Illinois |
Pedigree Summary
George + 1 sibling
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)