JC
James Cunningham — 1940 US Census Record
Model Tree available1940 United States Federal Census · Woodbury-County, Iowa
Our Model Tree links this James Cunningham across the 1920, 1930 and 1940 US Censuses in Woodbury-County, Iowa (XGBoost, ~Confirmed), with identified parents James — first a head (b.~1906), then head of a 5-person household.
Age 34
b. ~1906
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Woodbury-County, Iowa |
| Surname | Cunningham |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Plymouth |
| Additional Details | |
| Occupation | Salesman |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Salesman |
| Township / Ward | Sioux City |
| Est. Birth Year | ~1906 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Sally Cunningham | Daughter | — | 12 | ~1928 |
| James Cunningham | Head | — | 34 | ~1906 |
| Bobby Cunningham | Son | — | 10 | ~1930 |
| James Cunningham | Son | — | 11 | ~1929 |
| Bernice Cunningham | Spouse | — | 40 | ~1900 |
Census Appearances
1920
Woodbury, Iowa
Son, age 12
Woodbury, Iowa · implied b. ~1908 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cunningham |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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
Woodbury, Iowa
Son, age 22
Woodbury, Iowa · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cunningham |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Driver |
| Industry | Packing Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Woodbury-County, Iowa
Head, age 34
Woodbury-County, Iowa · implied b. ~1906 — 5 household members
| Surname | Cunningham |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Plymouth |
| Occupation | Salesman |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| Highest Grade | No 8 |
| 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 Cunningham across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Cunningham (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Cunningham
b. ~1892
Source father
● Household
· direct · ~0.92
This person
Anchor record
James Cunningham
Head · 1940 · age 34 · b. ~1906 · 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 — Woodbury-County, Iowa
Open full size
1940 US Federal Census — Woodbury-County, Iowa
Page Contents
27 people indexed on this census page (nara:1940:m-t0627-01215-01004)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nash Hansen | 44 | Head | Common Laborer | Iowa |
| 2 | Bob Jenkins | 72 | Lodger | — | Iowa |
| 3 | Ray Collins | 39 | Head | Hobo | Colorado |
| 4 | Alex Schanaki | 46 | Partner | Mechanic | Russia |
| 5 | Arnt Solberg | 58 | Partner | Rag & Paper Collector | Norway |
| 6 | Ervin Coffey | 52 | Partner | Beach Comber | Kansas |
| 7 | William Sater | 54 | Partner | Beach Comber | S. Dakota |
| 8 | John Blockhear | 64 | Partner | Wild Game Trapper | S. Dakota |
| 9 | Harry Blyckanski | 50 | Partner | Wild Game Trapper | S. Dakota |
| 10 | Jack Whitehorse | 54 | Partner | Wild Game Hunter | Minnesota |
| 11 | Jack Little | 62 | Partner | Dumping River | New York |
| 12 | Alexander Armatrony | 58 | Partner | Beach Comber | Boston |
| 13 | John Smith | 65 | Partner | Metal Collector | Chicago |
| 14 | John Ryan | 55 | Partner | Feather Weight Fighter | Ireland |
| 15 | Harold Frederick | 34 | Head | Cream Grader | Nebraska |
| 16 | Elizabeth Frederick | 37 | Wife | — | Nebraska |
| 17 | Elizabeth Jr Frederick | 13 | Daughter | — | Nebraska |
| 18 | James Cunningham THIS PERSON | 34 | Head | Salesman | Iowa |
| 19 | Bernice Cunningham | 40 | Wife | — | S. Dakota |
| 20 | Sally A Cunningham | 12 | Daughter | — | Illinois |
| 21 | James Jr Cunningham | 11 | Son | — | Illinois |
| 22 | Bobby B Cunningham | 10 | Son | — | Illinois |
| 23 | C. B. Warden | 67 | Head | — | — |
| 24 | C. W. Barcheiding | 35 | Head | Labor | Iowa |
| 25 | Donald Barcheiding | 5 | Son | — | Iowa |
| 26 | Vera Dutcher | 30 | Housekeeper | Housekeeper | Iowa |
| 27 | Carl Dutcher | 11 | Son | — | Iowa |
Pedigree Summary
James
Gen 1 · 1 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)