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James Robinson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this James Robinson across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents James & Thomas — first a son (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Robinson |
| Given Name | James W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Camp Twp. |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 70 |
| Income (1939) | 888 |
| Highest Grade | Hs 2 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Laborer |
| Township / Ward | Camp Twp |
| Est. Birth Year | ~1914 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Thomas Robinson | Head | — | 60 | ~1880 |
| Thomas Robinson | Son | — | 30 | ~1910 |
| James Robinson | Son | — | 26 | ~1914 |
| Kate Robinson | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Polk, Iowa
Son, age 6
Polk, Iowa · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robinson |
| Given Name | James H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 16
Polk, Iowa · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robinson |
| Given Name | James W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Son, age 26
Polk-County, Iowa · implied b. ~1914 — 4 household members
| Surname | Robinson |
| Given Name | James W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Camp Twp. |
| 1935 Residence (County) | Polk |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 70 |
| Income (1939) | 888 |
| Highest Grade | Hs 2 |
| 1935 Residence | Iowa |
| 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 Robinson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Robinson (~0.92 confidence) and father Thomas Robinson (~0.92 confidence) and mother Kate Robinson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Robinson
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Thomas Robinson
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Kate Robinson
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Robinson
Son · 1940 · age 26 · b. ~1914 · Iowa
★ You are viewing this record
Sibling
Thomas Robinson
Sibling · 1940 · age 30
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 — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01192-00302)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marilyn De Graff | 5 | daughter | — | Iowa |
| 42 | Le Bates Verwers | 41 | Head | Farmer | Iowa |
| 43 | Alda M Verwers | 24 | Wife | — | Missouri |
| 44 | John P Nuens | 49 | Head | Farmer | Iowa |
| 45 | Mary M Nuens | 45 | Wife | — | Iowa |
| 46 | Sara M Nuens | 11 | daughter | — | Iowa |
| 47 | Edward E Nuens | 8 | Son | — | Iowa |
| 48 | Lowman Miller | 60 | Head | Farmer | Iowa |
| 49 | Cora M Miller | 55 | Wife | — | Iowa |
| 50 | Kenneth F Miller | 27 | Son | Laborer | Iowa |
| 51 | Everett H Miller | 25 | Son | Laborer | Iowa |
| 52 | Dorothy Miller | 5 | daughter | — | Iowa |
| 53 | Harry F Fritz | 54 | Head | Farmer | Iowa |
| 54 | Mae S Fritz | 49 | Wife | — | Indiana |
| 55 | Evalynne V Fritz | 18 | daughter | — | Iowa |
| 56 | Billy E Fritz | 8 | Son | — | Iowa |
| 57 | Ralph Miles | 19 | Hired man | Laborer | Iowa |
| 58 | Arthur J Warner | 39 | Head | Laborer | Missouri |
| 59 | Sylvia M Warner | 30 | Wife | — | Nebraska |
| 60 | Vinnie J Warner | 1 | Son | — | Iowa |
| 61 | John H Watkins | 66 | Head | Farmer | West Virginia |
| 62 | Jumma Watkins | 48 | Brother | Farmer | Iowa |
| 63 | Clinton A Eddinger | 31 | Head | Laborer | Colorado |
| 64 | Pauline E Eddinger | 20 | Wife | — | Iowa |
| 65 | Vernon F Schultz | 25 | Head | Farmer | Iowa |
| 66 | Erma Schultz | 19 | Wife | — | Iowa |
| 67 | Rae L Schultz | 22 | Brother | Farmer | Iowa |
| 68 | George K Bear | 45 | Head | Laborer | South Carolina |
| 69 | Doyle K Bear | 35 | Wife | — | Iowa |
| 70 | Joan Bear | 4 | daughter | — | Iowa |
| 71 | Leonard Bear | 2 | Son | — | Iowa |
| 72 | William R Chaddock | 41 | Head | Laborer | Iowa |
| 73 | Clifford S Cage | 38 | Head | Laborer | Iowa |
| 74 | Beneta F Cage | 34 | Wife | — | Iowa |
| 75 | Helen F Cage | 13 | daughter | — | Iowa |
| 76 | Lyle D Cage | 10 | Son | — | Iowa |
| 77 | Thomas S Robinson | 60 | Head | Farmer | Iowa |
| 78 | Kate Robinson | 52 | Wife | — | Iowa |
| 79 | Thomas E Robinson | 30 | Son | Laborer | Iowa |
| 80 | James W Robinson THIS PERSON | 26 | Son | Laborer | Iowa |
Related Census Records
Pedigree Summary
James + 1 sibling
Gen 1 · 3 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)