HG
Helen Graham — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kossuth-County, Iowa
Our Model Tree links this Helen Graham across the 1930 and 1940 US Censuses in Kossuth-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 8-person household.
Age 10
b. ~1930
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kossuth-County, Iowa |
| Surname | Graham |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Algona |
| 1935 Residence (County) | Kossuth |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Algona |
| Est. Birth Year | ~1930 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Viola Graham | Daughter | — | 8 | ~1932 |
| Helen Graham | Daughter | — | 10 | ~1930 |
| Harvey Graham | Head | — | 32 | ~1908 |
| Donald Graham | Son | — | 4 | ~1936 |
| Katharine Graham | Spouse | — | 33 | ~1907 |
| Luella Graham | Daughter | — | 11 | ~1929 |
| Roger Graham | Son | — | 3 | ~1937 |
| Harvey Graham | Son | — | 5 | ~1935 |
Census Appearances
1930
Kossuth, Iowa
Daughter, age
Kossuth, Iowa · implied b. ~1930 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Kossuth-County, Iowa
Daughter, age 10
Kossuth-County, Iowa · implied b. ~1930 — 8 household members
| Surname | Graham |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Algona |
| 1935 Residence (County) | Kossuth |
| Highest Grade | 4 |
| 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 Graham across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Graham
Daughter · 1940 · age 10 · b. ~1930 · Iowa
★ You are viewing this record
Sibling
Harvey Graham
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roger Graham
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Graham
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Viola Graham
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Luella Graham
Sibling · 1940 · age 11
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 — Kossuth-County, Iowa
Open full size
1940 US Federal Census — Kossuth-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01173-00019)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Wilfred Lauritsen | 29 | Head | Mechanic | Iowa |
| 42 | Lillian E Lauritsen | 28 | Wife | — | Iowa |
| 43 | Marie Ann Lauritsen | 4 | Daughter | — | Iowa |
| 44 | Bobby Lauritsen | 3 | Son | — | Iowa |
| 45 | Joseph W Lauritsen | 0 | Son | — | Iowa |
| 46 | Otto H Schmidt | 57 | Head | Carpenter | Denmark |
| 47 | Alice Harriet Schmidt | 51 | Wife | — | Iowa |
| 48 | Gordon Earl Schmidt | 16 | Son | — | Iowa |
| 49 | Cecil E Williams | 27 | Roomer | Manager | South Dakota |
| 50 | Dorothy Williams | 22 | Roomer | Assistant Manager | Iowa |
| 51 | Mereldeen Elliott | 24 | Roomer | Beautician | Iowa |
| 52 | Albert Blanchard | 58 | Head | Trucker | Iowa |
| 53 | Bessie U Blanchard | 53 | Wife | — | Kansas |
| 54 | Waymen Blanchard | 24 | Son | Laborer | Iowa |
| 55 | Cecil Blanchard | 17 | Son | — | Iowa |
| 56 | Lucille Blanchard | 14 | Daughter | — | Iowa |
| 57 | Betty Lou Blanchard | 13 | Daughter | — | Iowa |
| 58 | Harvey Graham | 32 | Head | Laborer | Iowa |
| 59 | Katharine Graham | 33 | Wife | — | Iowa |
| 60 | Luella Graham | 11 | Daughter | — | Iowa |
| 61 | Helen Graham THIS PERSON | 10 | Daughter | — | Iowa |
| 62 | Viola Graham | 8 | Daughter | — | Iowa |
| 63 | Harvey Graham | 5 | Son | — | Iowa |
| 64 | Donald Graham | 4 | Son | — | Iowa |
| 65 | Roger Graham | 3 | Son | — | Iowa |
| 67 | S. D. Nelson | 62 | Head | Salesman | Minnesota |
| 68 | Mayme Nelson | 66 | Wife | — | Iowa |
| 69 | Florence Peterson | 34 | Daughter | Sales Lady | Iowa |
| 70 | Ronald Peterson | 8 | Grandson | — | Iowa |
| 71 | John Philip Peterson | 5 | Grandson | — | Iowa |
| 72 | Jennie Blossom | 75 | Head | — | Iowa |
| 73 | R. S. Blossom | 56 | Head | Insurance | Iowa |
| 74 | Ellen E Blossom | 54 | Wife | — | Iowa |
| 75 | Laura Hopkins | 76 | Head | — | Iowa |
| 76 | Lee Hopkins | 51 | Son | Salesman | Iowa |
| 77 | Bess Hopkins | 47 | Daughter | — | Iowa |
| 78 | Joe Greenberg | 50 | Head | Retail Merchant | Russia |
| 79 | Sophia Greenberg | 45 | Wife | — | Russia |
| 80 | Isabel Greenberg | 17 | Daughter | Broadcasting | 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)