MH
Mary Heller — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Shelby-County, Iowa
Our Model Tree links this Mary Heller across the 1930 and 1940 US Censuses in Shelby-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 10-person household.
Age 10
b. ~1930
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Shelby-County, Iowa |
| Surname | Heller |
| Given Name | Mary Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (County) | Shelby |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Portsmouth Town |
| 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Richard Heller | Son | — | 9 | ~1931 |
| Frances Heller | Spouse | — | 36 | ~1904 |
| Marianne Heller | Daughter | — | 6 | ~1934 |
| Mary Heller | Daughter | — | 10 | ~1930 |
| Henry Heller | Head | — | 37 | ~1903 |
| Elaine Heller | Daughter | — | 12 | ~1928 |
| Roseann Heller | Daughter | — | 8 | ~1932 |
| Philip Heller | Son | — | 3 | ~1937 |
| Alvin Heller | Son | — | 13 | ~1927 |
| Darlene Heller | Daughter | — | 1 | ~1939 |
Census Appearances
1930
Shelby, Iowa
Daughter, age
Shelby, Iowa · implied b. ~1930 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Heller |
| Given Name | Mary H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Shelby-County, Iowa
Daughter, age 10
Shelby-County, Iowa · implied b. ~1930 — 10 household members
| Surname | Heller |
| Given Name | Mary Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (County) | Shelby |
| Highest Grade | No 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 Mary Heller across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Heller
Daughter · 1940 · age 10 · b. ~1930 · Iowa
★ You are viewing this record
Sibling
Roseann Heller
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Darlene Heller
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Philip Heller
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Heller
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alvin Heller
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marianne Heller
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elaine Heller
Sibling · 1940 · age 12
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 — Shelby-County, Iowa
Open full size
1940 US Federal Census — Shelby-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01204-00007)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Donald Keller | 4 | Son | — | — |
| 2 | Marjorie Keller | 2 | Daughter | — | — |
| 3 | Peter Hein | 68 | Head | 40 | Iowa |
| 4 | Peter Michalowski | 58 | Head | 40 | Wisconsin |
| 5 | Norman Michalowski | 20 | Son | 32 | Iowa |
| 6 | Roland Michalowski | 18 | Son | 48 | Iowa |
| 7 | Jim Evelen | 16 | Son | 0 | Iowa |
| 8 | Susanne Evelen | 13 | Daughter | — | Iowa |
| 9 | Frank O. Aubane | 51 | Head | 70 | Iowa |
| 10 | Susan A. Aubane | 57 | Wife | — | Iowa |
| 11 | Annabella Aubane | 21 | Daughter | — | Iowa |
| 12 | Stephen J. Lefebre | 66 | Head | 60 | Wisconsin |
| 13 | Christina Lefebre | 59 | Wife | — | Iowa |
| 14 | Wilfred Cerns | 56 | Head | — | Pennsylvania |
| 15 | Annie Cerns | 57 | Wife | — | Pennsylvania |
| 16 | Michal Corey | 58 | Lodger | — | Iowa |
| 17 | Gilbert Olsen | 47 | Partner | 60 | Iowa |
| 18 | Renzo Poole | 70 | Lodger | — | Pennsylvania |
| 19 | George O. Andersen | 54 | Head | 70 | Iowa |
| 20 | Sadie Andersen | 48 | Wife | — | Iowa |
| 21 | Shirley L. Andersen | 11 | Daughter | — | Iowa |
| 22 | John B. Jr. Jepsen | 27 | Head | 70 | Iowa |
| 23 | Lola Mae Jepsen | 27 | Wife | 70 | Missouri |
| 24 | Giles O. Bender | 66 | Head | 70 | Iowa |
| 25 | Anna M. Bender | 60 | Wife | — | Iowa |
| 26 | Henry B. Heller | 37 | Head | 70 | Iowa |
| 27 | Frances V. Heller | 36 | Wife | — | Iowa |
| 28 | Alvin Heller | 13 | Son | — | Iowa |
| 29 | Elaine Heller | 12 | Daughter | — | Iowa |
| 30 | Mary Helen Heller THIS PERSON | 10 | Daughter | — | Iowa |
| 31 | Richard Heller | 9 | Son | — | Iowa |
| 32 | Roseann Heller | 8 | Daughter | — | Iowa |
| 33 | Marianne Heller | 6 | Daughter | — | Iowa |
| 34 | Philip Heller | 3 | Son | — | — |
| 35 | Darlene Heller | 1 | Daughter | — | — |
| 36 | Rosa Kruger | 84 | Head | — | Germany |
| 37 | Agnes Desman | 60 | Head | — | Iowa |
| 38 | Mattie Desman | 54 | Sister | — | Iowa |
| 39 | Frank R. Sensen | 29 | Head | 40 | Iowa |
| 40 | Margalene Sensen | 21 | Wife | — | 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)