HJ
Helen James — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cass-County, Iowa
Our Model Tree links this Helen James across the 1930 and 1940 US Censuses in Cass-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 6-person household.
Age 15
b. ~1925
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cass-County, Iowa |
| Surname | James |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Atlantic city |
| 1935 Residence (County) | Cass |
| Additional Details | |
| Highest Grade | H-1 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Atlantic City |
| Est. Birth Year | ~1925 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Alice James | Daughter | — | 2 | ~1938 |
| Helen James | Daughter | — | 15 | ~1925 |
| Martin James | Son | — | 27 | ~1913 |
| Anna James | Spouse | — | 46 | ~1894 |
| Martin James | Head | — | 54 | ~1886 |
| Max James | Son | — | 25 | ~1915 |
Census Appearances
1930
Cass, Iowa
Daughter, age 6
Cass, Iowa · implied b. ~1924 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | James |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cass-County, Iowa
Daughter, age 15
Cass-County, Iowa · implied b. ~1925 — 6 household members
| Surname | James |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Atlantic city |
| 1935 Residence (County) | Cass |
| Highest Grade | H-1 |
| 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 Helen James across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen James
Daughter · 1940 · age 15 · b. ~1925 · Iowa
★ You are viewing this record
Sibling
Alice James
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Max James
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martin James
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 — Cass-County, Iowa
Open full size
1940 US Federal Census — Cass-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01145-00021)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Norma Jenkins | 14 | Daughter | — | Iowa |
| 2 | Violet Jenkins | 13 | Daughter | — | Iowa |
| 3 | Virginia Jenkins | 11 | Daughter | — | Iowa |
| 4 | Pearl Jenkins | 10 | Daughter | — | Iowa |
| 5 | Betty Lou Jenkins | 9 | Daughter | — | Iowa |
| 6 | Ruth Wheeler | 38 | Head | Housework | Iowa |
| 7 | Charles D. Wheeler | 19 | Son | Attendant | Iowa |
| 8 | Oliver Lay | 64 | Mother | — | Nebraska |
| 9 | Riley Lay | 62 | Father | — | Iowa |
| 10 | Lloyd Lindsey | 47 | Head | Proprietor | Iowa |
| 11 | Ethel D. Lindsey | 41 | Wife | — | Iowa |
| 12 | H. Gladys Wilken | 42 | Head | — | Iowa |
| 13 | Patricia Ann Wilken | 8 | Daughter | — | Iowa |
| 14 | Cora E. Herbert | 75 | Head | — | Indiana |
| 15 | Leon E. Howard Andrews | 52 | Head | Livestock Buyer | Nebraska |
| 16 | Irene Andrews | 43 | Wife | — | Iowa |
| 17 | Charles Andrews | 21 | Son | Livestock Buyer | Iowa |
| 18 | Wayne Andrews | 19 | Son | Clerk | Iowa |
| 19 | James Etier | 73 | Head | — | Iowa |
| 20 | End Block 9 Begin Block 8 | None | — | — | — |
| 21 | Bert Carey | 44 | Head | Clerk | England |
| 22 | Zola D. Carey | 46 | Wife | — | Iowa |
| 23 | Cleo Carey | 18 | Daughter | Silk Finisher | Iowa |
| 24 | Colin Carey | 17 | Son | — | Iowa |
| 25 | Maurice Carey | 15 | Son | — | Iowa |
| 26 | Jacob Jorgensen | 67 | Head | Caretaker | Denmark |
| 27 | Margaret L. Jorgensen | 61 | Wife | — | Iowa |
| 28 | John M. Jorgensen | 32 | Son | Mechanic | Iowa |
| 29 | Lester E. Brown | 53 | Head | Deliveryman | Iowa |
| 30 | Emma E. Brown | 54 | Wife | Cook | Iowa |
| 31 | Myrtle E. Brown | 21 | Daughter | School Teacher | Iowa |
| 32 | Joe Brown | 44 | Head | Electrical Engineer | Iowa |
| 33 | Gladys Brown | 50 | Wife | — | Iowa |
| 34 | Martin James | 54 | Head | Baker | Germany |
| 35 | Anna James | 46 | Wife | — | Iowa |
| 36 | Martin Jr. James | 27 | Son | Truck Yard | S. Dakota |
| 37 | Max James | 25 | Son | Painter | Iowa |
| 38 | Helen James THIS PERSON | 15 | Daughter | — | Iowa |
| 39 | Alice James | 2 | Daughter | — | Iowa |
| 40 | A. Lee Wilkins | 54 | Head | Farming | Missouri |
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)