HJ
Helen James — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Helen James across the 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 7-person household.
Age 16
b. ~1924
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | James |
| Given Name | Helen B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Highest Grade | H 3 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1924 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen James | Daughter | — | 16 | ~1924 |
| Paul James | Son | — | 13 | ~1927 |
| Ethel Stockdale | Other | — | 32 | ~1908 |
| Harriet James | Daughter | — | 20 | ~1920 |
| Paul James | Head | — | 43 | ~1897 |
| Jean James | Daughter | — | 14 | ~1926 |
| Helen James | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Polk, Iowa
Daughter, age 8
Polk, Iowa · implied b. ~1922 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | James |
| Given Name | Helen B |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Daughter, age 16
Polk-County, Iowa · implied b. ~1924 — 7 household members
| Surname | James |
| Given Name | Helen B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Highest Grade | H 3 |
| 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 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 16 · b. ~1924 · Iowa
★ You are viewing this record
Sibling
Harriet James
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul James
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean James
Sibling · 1940 · age 14
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-t0627-01193-00635)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Virginia Gray | 15 | Daughter | Maid | Iowa |
| 42 | Dorothy Dixon | 26 | Maid | Maid | Iowa |
| 43 | Ralph A. Sloan | 51 | Head | Broker | Iowa |
| 44 | Mabel B. Sloan | 51 | Wife | — | Iowa |
| 45 | Edgar C. Corry | 69 | Head | Attorney | Iowa |
| 46 | Anna Marie Corry | 67 | Wife | — | Iowa |
| 47 | E. C. Jr. Corry | 28 | Son | Attorney | Iowa |
| 48 | Ella Costello | 70 | Head | Buyer | Iowa |
| 49 | William Muelhaupt | 22 | Nephew | Music | Iowa |
| 50 | James Paul Neal | 51 | Head | Realtor | Iowa |
| 51 | Frances H. Neal | 46 | Wife | — | Illinois |
| 52 | Paul Jr. Neal | 24 | Son | Attorney | Iowa |
| 53 | Janet A. Neal | 17 | Daughter | — | Iowa |
| 54 | Robert Marshall Neal | 4 | Son | — | Iowa |
| 55 | Paul James | 43 | Head | Attorney | Iowa |
| 56 | Helen F. James | 42 | Wife | Maid | Iowa |
| 57 | Harriet E. James | 20 | Daughter | — | Iowa |
| 58 | Helen B. James THIS PERSON | 16 | Daughter | — | Iowa |
| 59 | Jean J. James | 14 | Daughter | — | Iowa |
| 60 | Paul G. Jr. James | 13 | Son | — | Iowa |
| 61 | Ethel Stockdale | 32 | Maid | Maid | Iowa |
| 62 | Nicholas F. Reed | 71 | Head | Clerk | Illinois |
| 63 | Bertha H. Reed | 72 | Wife | — | Iowa |
| 64 | Richard F. Reed | 15 | Son | Paper Carrier | Iowa |
| 65 | Minnie Parks | 70 | Mother-in-law | — | Iowa |
| 66 | Ray Stan Kendall | 64 | Head | Traveling Salesman | Iowa |
| 67 | Dorothy W. Kendall | 55 | Wife | — | Michigan |
| 68 | Carolyn H. Humble | 36 | Daughter | — | Michigan |
| 69 | R. B. Bowman | 40 | Head | Proprietor | Out of City at present |
| 70 | Gust Kofotish | 54 | Head | — | Greece |
| 71 | Mary Kofotish | 53 | Wife | — | Germany |
| 72 | Foti Kofotish | 24 | Son | Salesman | Iowa |
| 73 | Aspasia Kofotish | 20 | Daughter | Office Executive | Iowa |
| 74 | Phillip Kofotish | 12 | Son | — | Iowa |
| 75 | Ed Ende Block | 53 | Block | — | Russia |
| 76 | Millie W. Baker | 72 | Head | — | Iowa |
| 77 | Louen Donley | 74 | Sister | — | Iowa |
| 78 | Eugene Stoddard | 56 | Head | Executive | South Dakota |
| 79 | Eva Stoddard | 55 | Wife | — | So. Dakota |
| 80 | Robert Stoddard | 16 | Son | — | Iowa |
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)