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John Coleman — 1940 US Census Record
Model Tree available1940 United States Federal Census · Scott-County, Iowa
Our Model Tree links this John Coleman across the 1920, 1930 and 1940 US Censuses in Scott-County, Iowa (XGBoost, ~Confirmed), with identified parents Dora & George — first a son (b.~1919), then head of a 2-person household.
Age 21
b. ~1919
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Scott-County, Iowa |
| Surname | Coleman |
| Given Name | John T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Additional Details | |
| Occupation | Machine Operator |
| Industry | Pump Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1167 |
| Highest Grade | H-3 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Machine Operator |
| Township / Ward | Davenport City |
| 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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Hulda Coleman | Head | — | 55 | ~1885 |
| John Coleman | Son | — | 21 | ~1919 |
Census Appearances
1920
Scott, Iowa
Son, age 1
Scott, Iowa · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coleman |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Ohio |
| 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 11
Scott, Iowa · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coleman |
| Given Name | John T |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Scott-County, Iowa
Son, age 21
Scott-County, Iowa · implied b. ~1919 — 2 household members
| Surname | Coleman |
| Given Name | John T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Occupation | Machine Operator |
| Industry | Pump Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1167 |
| Highest Grade | H-3 |
| 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 John Coleman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Dora Peck (~0.92 confidence) and father George Peck (~0.92 confidence) and father John Coleman (~0.92 confidence) and mother Hulda Coleman (~0.92 confidence) and mother Freda Coleman (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Dora Peck
b. ~1867
Source mother
● Household
· direct · ~0.92
Father
George Peck
b. ~1871
Source father
● Household
· direct · ~0.92
Father
John Coleman
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Hulda Coleman
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Freda Coleman
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Coleman
Son · 1940 · age 21 · b. ~1919 · Iowa
★ You are viewing this record
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-t0627-01202-00571)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John H. Kahl | 58 | Head | Assembler | Germany |
| 2 | Gail B. Conrad | 40 | Head | Miller Helper | Iowa |
| 3 | Besse O. Conrad | 41 | Wife | — | Iowa |
| 4 | Billy B. Conrad | 15 | Son | Lake Clerk | Iowa |
| 5 | Barbara L. Conrad | 10 | Daughter | — | Iowa |
| 6 | William B. Linville | 40 | Head | Tractor Driver | Illinois |
| 7 | Rebecca Linville | 38 | Wife | — | Iowa |
| 8 | Jean E. Linville | 17 | Daughter | Maid | Iowa |
| 9 | Dean W. Linville | 16 | Son | — | Iowa |
| 10 | Max E. Linville | 13 | Son | — | Iowa |
| 11 | William Jr. Linville | 11 | Son | — | Illinois |
| 12 | Howard W. Linville | 9 | Son | — | Iowa |
| 13 | William L. Showens | 47 | Head | Truck Driver | Illinois |
| 14 | Wilhelmina M. Showens | 42 | Wife | — | Iowa |
| 15 | Marion M. Showens | 15 | Daughter | — | Iowa |
| 16 | Helen Jean Showens | 14 | Daughter | — | Iowa |
| 17 | Phyllis M. Showens | 12 | Daughter | — | Iowa |
| 18 | John Schroeder | 69 | Uncle | — | Germany |
| 19 | Clifford J. Jr. Eden | 40 | Head | Salesman | Iowa |
| 20 | Eleanor J. Eden | 36 | Wife | Practical Nurse | Iowa |
| 21 | Lester B. Mckinney | 36 | Head | Proprietor | Iowa |
| 22 | Olah H. Mckinney | 36 | Wife | — | Iowa |
| 23 | Samuel C. Du Vall | 67 | Father-in-law | — | Illinois |
| 24 | Margaret Du Vall | 65 | Mother-in-law | — | Iowa |
| 25 | Helen M. Du Vall | 16 | Sister-in-law | — | Iowa |
| 26 | Herbert A. Hebeler | 30 | Head | Machine Operator | Iowa |
| 27 | Margaret A. Hebeler | 26 | Wife | — | South Dakota |
| 28 | Dorine P. Hebeler | 4 | Daughter | — | Iowa |
| 29 | Robert A. Hebeler | 2 | Son | — | Iowa |
| 30 | Charles I. Rose | 31 | Head | Truck Driver | Missouri |
| 31 | Dora M. Rose | 32 | Wife | Machine Operator | Missouri |
| 32 | Earnest Spencer | 17 | Lodger | — | Iowa |
| 33 | Johana Stoltenberg | 75 | Head | — | Iowa |
| 34 | Sadie E. Stoltenberg | 55 | Daughter | — | Iowa |
| 35 | Martha L. Seemann | 53 | Daughter | Switchboard Operator | Iowa |
| 36 | Sophie M. Williamson | 50 | Head | Cleaning Woman | Iowa |
| 37 | Fred K. Williamson | 20 | Son | Ruler | Iowa |
| 38 | Hulda Coleman | 55 | Head | Janitress | Iowa |
| 39 | John T. Coleman THIS PERSON | 21 | Son | Machine Operator | Iowa |
Pedigree Summary
John
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)