MF
Mary Fischer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Webster-County, Iowa
Our Model Tree links this Mary Fischer across the 1930 and 1940 US Censuses in Webster-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 7-person household.
Age 10
b. ~1930
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Webster-County, Iowa |
| Surname | Fischer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Dayton Town |
| 1935 Residence (County) | Webster |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Dayton 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edith Fischer | Spouse | — | 34 | ~1906 |
| Lorene Fischer | Daughter | — | 16 | ~1924 |
| Betty Fischer | Daughter | — | 7 | ~1933 |
| Mary Fischer | Daughter | — | 10 | ~1930 |
| Franklin Fischer | Son | — | 6 | ~1934 |
| Orville Fischer | Head | — | 45 | ~1895 |
| Warren Fischer | Son | — | 14 | ~1926 |
Census Appearances
1930
Webster, Iowa
Daughter, age
Webster, Iowa · implied b. ~1930 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fischer |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Webster-County, Iowa
Daughter, age 10
Webster-County, Iowa · implied b. ~1930 — 7 household members
| Surname | Fischer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Dayton Town |
| 1935 Residence (County) | Webster |
| 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 Mary Fischer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Fischer
Daughter · 1940 · age 10 · b. ~1930 · Iowa
★ You are viewing this record
Sibling
Franklin Fischer
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Fischer
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorene Fischer
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Warren Fischer
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 — Webster-County, Iowa
Open full size
1940 US Federal Census — Webster-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01212-00157)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Inez E. Watson | 25 | Servant | Housekeeper | Missouri |
| 42 | Orville Fischer | 45 | Head | Proprietor | Illinois |
| 43 | Edith Fischer | 34 | Wife | — | Iowa |
| 44 | Lorene Fischer | 16 | Daughter | — | Iowa |
| 45 | Warren Fischer | 14 | Son | — | Iowa |
| 46 | Mary Fischer THIS PERSON | 10 | Daughter | — | Iowa |
| 47 | Betty Fischer | 7 | Daughter | — | Iowa |
| 48 | Franklin Fischer | 6 | Son | — | Iowa |
| 49 | Wilson G. Forsberg | 37 | Head | Machine Operator | Iowa |
| 50 | Ruth Forsberg | 25 | Wife | — | Iowa |
| 51 | Marie Erickson | 53 | Head | — | Iowa |
| 52 | Axel L. Erickson | 44 | Brother | Carpenter | Iowa |
| 53 | Emma J. Chinburg | 85 | Head | — | Minnesota |
| 54 | Anna M. Olson | 50 | Head | — | Denmark |
| 55 | Edna M. Olson | 19 | Daughter | Servant | Iowa |
| 56 | Carl J. Olson | 13 | Son | — | Iowa |
| 57 | Mayme Carlson | 52 | Head | — | Iowa |
| 58 | J. Edwin Larson | 51 | Head | Superintendent | Sweden |
| 59 | Mable Larson | 35 | Wife | — | Iowa |
| 60 | John C. Larson | 8 | Son | — | Iowa |
| 61 | Wayne E. Larson | 7 | Son | — | Iowa |
| 62 | Allen Odell | 82 | Head | — | Missouri |
| 63 | Sarah J. Odell | 79 | Wife | — | Iowa |
| 64 | John J. Meehan | 53 | Head | Station Agent | New York |
| 65 | Florence Meehan | 45 | Wife | — | Iowa |
| 66 | Raymond Meehan | 20 | Son | — | Iowa |
| 67 | Willie D. Vegas | 41 | Head | 60 | Iowa |
| 68 | Mildred Vegas | 39 | Wife | — | Iowa |
| 69 | Maxine Vegas | 21 | Daughter | 42 | Iowa |
| 70 | Duane Vegas | 18 | Son | — | Iowa |
| 71 | Jackie Vegas | 5 | Son | — | Iowa |
| 72 | Axel J. Carlson | 76 | Head | — | Sweden |
| 73 | Axel Svenson | 81 | Head | — | Sweden |
| 74 | Frank Adamson | 67 | Head | Farmer | Sweden |
| 75 | Mary Adamson | 59 | Wife | — | Sweden |
| 76 | Bernard Stark | 34 | Head | Proprietor | Iowa |
| 77 | Dorothy Stark | 32 | Wife | Secretary | Kansas |
| 78 | John Jon Stark | 9 | Son | — | Iowa |
| 79 | Mary Stark | 7 | Daughter | — | Iowa |
| 80 | Oscar Burgeson | 21 | Boarder | 60 | 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)