JD
James Dyer — 1940 US Census Record
Model Tree available1940 United States Federal Census · Scott-County, Iowa
Our Model Tree links this James Dyer across the 1920, 1930 and 1940 US Censuses in Scott-County, Iowa (XGBoost, ~Confirmed), with identified parents Edward & Thomas — first a son (b.~1908), then head of a 3-person household.
Age 32
b. ~1908
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Scott-County, Iowa |
| Surname | Dyer |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Additional Details | |
| Occupation | Labourer |
| Industry | Foundry |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1040 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Labourer |
| Township / Ward | Davenport City |
| Est. Birth Year | ~1908 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Howard Dyer | Son | — | 27 | ~1913 |
| James Dyer | Son | — | 32 | ~1908 |
| Hanna Dyer | Head | — | 50 | ~1890 |
Census Appearances
1920
Scott, Iowa
Son, age 12
Scott, Iowa · implied b. ~1908 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dyer |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Scott, Iowa
Son, age 22
Scott, Iowa · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dyer |
| Given Name | James L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Molder |
| Industry | Foundry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Scott-County, Iowa
Son, age 32
Scott-County, Iowa · implied b. ~1908 — 3 household members
| Surname | Dyer |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Occupation | Labourer |
| Industry | Foundry |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1040 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 James Dyer across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Dyer (~0.92 confidence) and father Thomas Dyer (~0.92 confidence) and mother Anna Dyer (~0.92 confidence) and mother Hanna Dyer (~0.92 confidence) and mother Hannah Dyer (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Dyer
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Thomas Dyer
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Anna Dyer
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Hanna Dyer
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Hannah Dyer
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Dyer
Son · 1940 · age 32 · b. ~1908 · Iowa
★ You are viewing this record
Sibling
Howard Dyer
Sibling · 1940 · age 27
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
40 people indexed on this census page (nara:1940:m-t0627-01202-00586)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elmer O Ericsson | 33 | Head | Druggist | Illinois |
| 2 | Alice Ericsson | 30 | Wife | — | Illinois |
| 3 | Fred Jaspers | 35 | Head | Baker | Iowa |
| 4 | Irene O Jaspers | 34 | Wife | — | Iowa |
| 5 | Carol Irene Jaspers | 4 | Daughter | — | Iowa |
| 6 | Phillip H Skinner | 72 | Head | — | Iowa |
| 7 | Leona L Skinner | 40 | Daughter | Dean Of Girls | Iowa |
| 8 | L. N. Case | 46 | Head | Stationary Engineer | Iowa |
| 9 | Anna Case | 44 | Wife | — | Iowa |
| 10 | Mildred Case | 20 | Daughter | — | Iowa |
| 11 | Albie Mazzarello | 29 | Head | Power Riviter | Texas |
| 12 | Marie Mazzarello | 28 | Wife | — | Iowa |
| 13 | Patsy May Mazzarello | 9 | Daughter | — | Iowa |
| 14 | Joanne M Davis | 8 | Step-Daughter | — | Iowa |
| 15 | Lester N Davis | 7 | Step-Son | — | Iowa |
| 16 | Benjamin Schoer | 48 | Head | Packer | Iowa |
| 17 | Essie Schoer | 45 | Wife | — | Michigan |
| 18 | June Schoer | 17 | Daughter | — | Iowa |
| 19 | Helen Schoer | 11 | Daughter | — | Iowa |
| 20 | Albert Werder | 30 | Head | Truck Driver | Iowa |
| 21 | Mabel Werder | 26 | Wife | Demonstrator | Illinois |
| 22 | Herman Martens | 38 | Head | Coremaker | Kansas |
| 23 | Mabel Martens | 36 | Wife | — | Kentucky |
| 24 | John Brucker | 70 | Head | — | Germany |
| 25 | Anna Brucker | 62 | Wife | — | Iowa |
| 26 | John Jr. Brucker | 40 | Son | Truck Driver | Iowa |
| 27 | Charles Shewry | 40 | Head | Mechanic | Iowa |
| 28 | Edna Shewry | 40 | Wife | — | Iowa |
| 29 | Eva Mae Shewry | 16 | Daughter | — | Iowa |
| 30 | Shirley Jean Shewry | 5 | Daughter | — | Iowa |
| 31 | Donald Shewry | 8 | Son | — | Iowa |
| 32 | William Kossen | 64 | Head | Foreman | Germany |
| 33 | Gertrude Kossen | 61 | Wife | — | Germany |
| 34 | William J. Jr. Kossen | 40 | Head | Machinist | Germany |
| 35 | Mary Kossen | 31 | Wife | — | Kansas |
| 36 | Mary Ann Kossen | 1 | Daughter | — | Iowa |
| 37 | — | None | — | — | — |
| 38 | Hanna Dyer | 50 | Head | — | Iowa |
| 39 | Howard Dyer | 27 | Son | Truck Driver | Iowa |
| 40 | James Dyer THIS PERSON | 32 | Son | Labourer | Iowa |
Pedigree Summary
James + 1 sibling
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)