WG
William Griffin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Scott-County, Iowa
Our Model Tree links this William Griffin across the 1920, 1930 and 1940 US Censuses in Scott-County, Iowa (XGBoost, ~Confirmed), with identified parents Nettie & Antoinette — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Scott-County, Iowa |
| Surname | Griffin |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Bettendorf City |
| 1935 Residence (County) | Scott |
| Additional Details | |
| Occupation | machinist apprentice |
| Industry | Arsenal |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Machinist Apprentice |
| Township / Ward | Bettendorf City |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Antoinette Griffin | Daughter | — | 17 | ~1923 |
| W Griffin | Head | — | 50 | ~1890 |
| William Griffin | Son | — | 22 | ~1918 |
| Antoinette Griffin | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Scott, Iowa
Son, age 2
Scott, Iowa · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Scott, Iowa
Son, age 12
Scott, Iowa · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | William J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Scott-County, Iowa
Son, age 22
Scott-County, Iowa · implied b. ~1918 — 4 household members
| Surname | Griffin |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Bettendorf City |
| 1935 Residence (County) | Scott |
| Occupation | machinist apprentice |
| Industry | Arsenal |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Griffin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Nettie Griffin (~0.92 confidence) and mother Antoinette Griffin (~0.92 confidence) and father William Griffin (~0.92 confidence) and father W Griffin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Nettie Griffin
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Antoinette Griffin
b. ~1888
Source mother
● Household
· direct · ~0.92
Father
William Griffin
b. ~1889
Source father
● Household
· direct · ~0.92
Father
W Griffin
b. ~1890
Source father
● Household
· direct · ~0.92
This person
Anchor record
William Griffin
Son · 1940 · age 22 · b. ~1918 · Iowa
★ You are viewing this record
Sibling
Antoinette Griffin
Sibling · 1940 · age 17
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 — Scott-County, Iowa
Open full size
1940 US Federal Census — Scott-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01202-00079)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Vern Wilson | 30 | Head | Clerk | Iowa |
| 42 | Kathryn Wilson | 25 | Wife | — | Iowa |
| 43 | Rita R. Wilson | 5 | Daughter | — | Iowa |
| 44 | Nellie Haeck | 48 | Head | Bartender | Iowa |
| 45 | Margaret Haeck | 18 | Daughter | — | Iowa |
| 46 | Earl Shoemate | 48 | Head | Welder | Missouri |
| 47 | Marjorie Shoemate | 40 | Wife | — | Wisconsin |
| 48 | Jean Shoemate | 20 | Daughter | Laborer | Iowa |
| 49 | Max Shoemate | 16 | Son | New Washer | Iowa |
| 50 | Elmer J. Keiser | 52 | Head | Superintendent | Pennsylvania |
| 51 | Mabel Keiser | 46 | Wife | — | Illinois |
| 52 | Kenneth Keiser | 15 | Son | Carrier | Iowa |
| 53 | Arleen Keiser | 13 | Daughter | — | Iowa |
| 54 | Marvin Keiser | 8 | Son | — | Iowa |
| 55 | Mardel Keiser | 8 | Daughter | — | Iowa |
| 56 | Henry Roed | 77 | Head | — | Denmark |
| 57 | Margaret Roed | 78 | Wife | — | Denmark |
| 59 | Albert R. Laing | 65 | Head | — | Iowa |
| 60 | Maude Laing | 56 | Wife | Seamstress | Illinois |
| 61 | Raymond Laing | 29 | Son | Office Manager | Illinois |
| 62 | Mary Laing | 27 | Daughter | Teacher | Illinois |
| 63 | Ralph Laing | 23 | Son | Welder | Pennsylvania |
| 64 | Dorothy Laing | 25 | Daughter | — | Illinois |
| 65 | Erwin C. Schroeder | 55 | Head | Salesman | Iowa |
| 66 | Matilda Schroeder | 54 | Wife | — | Iowa |
| 67 | Helen Schroeder | 27 | Daughter | — | Iowa |
| 68 | Eunice Schroeder | 20 | Daughter | Saleslady | Iowa |
| 69 | Eugene Schroeder | 20 | Son | — | Iowa |
| 70 | Wilbur Schroeder | 12 | Son | — | Iowa |
| 71 | Hugo Zimmerman | 52 | Head | Labor | Germany |
| 72 | Russell Rice | 47 | Head | Farmer | Iowa |
| 73 | Laura Miller | 70 | Mother | — | Illinois |
| 74 | John Scheel | 69 | Head | Carpenter | Illinois |
| 75 | Alvena Scheel | 67 | Wife | — | Iowa |
| 76 | W. C. Griffin | 50 | Head | Welder | Illinois |
| 77 | Antoinette Griffin | 52 | Wife | — | Illinois |
| 78 | William Griffin THIS PERSON | 22 | Son | Machinist Apprentice | Iowa |
| 79 | Antoinette Griffin | 17 | Daughter | — | Iowa |
| 80 | Harry Kimball | 55 | Head | Moulder | Iowa |
Pedigree Summary
William + 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)