MW
Mary Weber — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Woodbury-County, Iowa
Our Model Tree links this Mary Weber across the 1930 and 1940 US Censuses in Woodbury-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 14-person household.
Age 13
b. ~1927
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Woodbury-County, Iowa |
| Surname | Weber |
| Given Name | Mary Ann |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Oto |
| 1935 Residence (County) | Woodbury |
| Additional Details | |
| Highest Grade | No 9 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Oto |
| Est. Birth Year | ~1927 |
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.
14 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Helen Weber | Daughter | — | 6 | ~1934 |
| Alice Weber | Daughter | — | 3 | ~1937 |
| Erika Weber | Daughter | — | 11 | ~1929 |
| Lois Weber | Daughter | — | 7 | ~1933 |
| Carol Weber | Daughter | — | 4 | ~1936 |
| Martha Weber | Daughter | — | 1 | ~1939 |
| Mary Weber | Daughter | — | 13 | ~1927 |
| John Weber | Head | — | 46 | ~1894 |
| James Weber | Son | — | 15 | ~1925 |
| Donald Weber | Son | — | 10 | ~1930 |
| Vernal Weber | Son | — | 6 | ~1934 |
| Leo Weber | Son | — | 16 | ~1924 |
| Raymond Weber | Son | — | 18 | ~1922 |
| Anna Weber | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Woodbury, Iowa
Daughter, age 3
Woodbury, Iowa · implied b. ~1927 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Weber |
| Given Name | Mary Anna |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Woodbury-County, Iowa
Daughter, age 13
Woodbury-County, Iowa · implied b. ~1927 — 14 household members
| Surname | Weber |
| Given Name | Mary Ann |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Oto |
| 1935 Residence (County) | Woodbury |
| Highest Grade | No 9 |
| 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 Weber across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Weber
Daughter · 1940 · age 13 · b. ~1927 · Iowa
★ You are viewing this record
Sibling
Martha Weber
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Weber
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Weber
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Weber
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Erika Weber
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Weber
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Weber
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Weber
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carol Weber
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vernal Weber
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Weber
Sibling · 1940 · age 18
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 — Woodbury-County, Iowa
Open full size
1940 US Federal Census — Woodbury-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01214-00441)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Lou Weathers | 5 | daughter | — | Iowa |
| 42 | Joseph E Hogan | 19 | Head | Farm Laborer | Iowa |
| 43 | John De Graaff | 58 | Head | Farmer | Netherlands |
| 44 | Elizabeth De Graaff | 56 | Wife | Farm Helper | Netherlands |
| 45 | John De Graaff | 18 | Son | Farm Laborer | Iowa |
| 46 | Neal De Graaff | 26 | Head | Farmer | Illinois |
| 47 | Florence De Graaff | 19 | Wife | — | Nebraska |
| 48 | Clarence N De Graaff | 0 | Son | — | Iowa |
| 49 | John O Uhl | 63 | Head | Farmer | Iowa |
| 50 | Elizabeth Uhl | 61 | Wife | Farm Helper | Iowa |
| 51 | Bernice Uhl | 24 | daughter | Maid | Iowa |
| 52 | Mary Uhl | 23 | daughter | Maid | Iowa |
| 53 | Charles Uhl | 20 | Son | Farm Laborer | Iowa |
| 54 | Helen Uhl | 16 | daughter | Helper At Home | Iowa |
| 55 | Leo Uhl | 13 | Son | — | Iowa |
| 56 | Fred D Taylor | 65 | Head | Farmer | England |
| 57 | Xavier Uhl | 69 | Head | Farmer | Germany |
| 58 | Mary Uhl | 65 | Wife | Farm Helper | Iowa |
| 59 | Raymond A Uhl | 31 | Son | Farmer | Iowa |
| 60 | John C Uhl | 25 | Son | Farm Laborer | Iowa |
| 61 | Loretta H Uhl | 22 | daughter | Home Helper | Iowa |
| 62 | Max Roach | 67 | Head | Farming | Germany |
| 63 | Anna D Roach | 56 | Wife | Farm Helper | Germany |
| 64 | Joseph Roach | 29 | Son | Farm Laborer | Iowa |
| 65 | Cecelia Roach | 24 | daughter | Helper At Home | Iowa |
| 66 | John Weber | 46 | Head | Farmer | Iowa |
| 67 | Anna D Weber | 41 | Wife | House Keeper | Iowa |
| 68 | Raymond Weber | 18 | Son | Farm Laborer | Iowa |
| 69 | Leo J Weber | 16 | Son | Farm Laborer | Iowa |
| 70 | James F Weber | 15 | Son | Farm Laborer | Iowa |
| 71 | Mary Ann Weber THIS PERSON | 13 | daughter | — | Iowa |
| 72 | Erika M Weber | 11 | daughter | — | Iowa |
| 73 | Donald J Weber | 10 | Son | — | Iowa |
| 74 | Lois S Weber | 7 | daughter | — | Iowa |
| 75 | Vernal L Weber | 6 | Son | — | Iowa |
| 76 | Helen L Weber | 6 | daughter | — | Iowa |
| 77 | Carol J Weber | 4 | daughter | — | Iowa |
| 78 | Alice Rose Weber | 3 | daughter | — | Iowa |
| 79 | Martha Ann Weber | 1 | daughter | — | Iowa |
Related Census Records
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)