MH
Mary Haas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Chippewa-County, Minnesota
Our Model Tree links this Mary Haas across the 1930 and 1940 US Censuses in Chippewa-County, Minnesota (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 6-person household.
Age 60
b. ~1880
Female
Spouse
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Chippewa-County, Minnesota |
| Surname | Haas |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Rheiderland |
| 1935 Residence (County) | Chippewa |
| Additional Details | |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Rheiderland |
| Est. Birth Year | ~1880 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Walter Haas | Son | — | 23 | ~1917 |
| Mary Haas | Spouse | — | 60 | ~1880 |
| Clarence Haas | Son | — | 20 | ~1920 |
| Matt Haas | Son | — | 29 | ~1911 |
| Christ Haas | Head | — | 70 | ~1870 |
| Francis Haas | Son | — | 24 | ~1916 |
Census Appearances
1930
Chippewa, Minnesota
Other, age 50
Chippewa, Minnesota · implied b. ~1880 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Haas |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 18 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Chippewa-County, Minnesota
Spouse, age 60
Chippewa-County, Minnesota · implied b. ~1880 — 6 household members
| Surname | Haas |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Rheiderland |
| 1935 Residence (County) | Chippewa |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Haas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Haas
Spouse · 1940 · age 60 · b. ~1880 · Minnesota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Chippewa-County, Minnesota
Open full size
1940 US Federal Census — Chippewa-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01913-00394)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gilbert Gibbon | 46 | Head | Farmer | Germany |
| 2 | Grace Gibbon | 45 | Wife | — | Minnesota |
| 3 | Lydia Gibbon | 21 | Daughter | — | Minnesota |
| 4 | Harold Gibbon | 16 | Son | Farm Hand | Minnesota |
| 5 | Calvin Gibbon | 2 | Son | — | Minnesota |
| 6 | William W. Ammermann | 33 | Head | Farmer | Minnesota |
| 7 | Anna Ammermann | 27 | Wife | — | Minnesota |
| 8 | Gerald Ammermann | 2 | Son | — | Minnesota |
| 9 | Jim Krupper | 19 | Hired Hand | Farm Hand | Minnesota |
| 10 | Jacob F. Petersen | 52 | Head | Farmer | Nebraska |
| 11 | Teresa Petersen | 46 | Wife | — | Iowa |
| 12 | Elizabeth N. Petersen | 12 | Daughter | — | Minnesota |
| 13 | Wilma J. Petersen | 7 | Daughter | — | Minnesota |
| 14 | Emma Gerdes | 44 | Head | Farmer | Minnesota |
| 15 | Katie Gerdes | 39 | Wife | — | Minnesota |
| 16 | Robert Gerdes | 23 | Son | Farm Hand | Minnesota |
| 17 | Anne Gerdes | 6 | Daughter | — | Minnesota |
| 18 | Dick Mearda | 26 | Head | Farmer | Minnesota |
| 19 | Sarah Mearda | 24 | Wife | — | Minnesota |
| 20 | George Fule | 24 | Head | Farmer | Minnesota |
| 21 | Helen Fule | 20 | Wife | — | Minnesota |
| 22 | Hubert Zimmer | 31 | Head | Farmer | Minnesota |
| 23 | Edith Zimmer | 30 | Wife | — | Minnesota |
| 24 | Frank Rayer | 50 | Head | Farmer | Illinois |
| 25 | Jennie Rayer | 47 | Wife | — | Minnesota |
| 26 | Clemens Schulte | 66 | Head | Farmer | Pennsylvania |
| 27 | Bernard Schulte | 40 | Son | Farmer | Minnesota |
| 28 | Veronica Schulte | 38 | Daughter | — | Minnesota |
| 29 | Danne Dannen | 25 | Head | Farmer | Minnesota |
| 30 | Henrietta Dannen | 27 | Wife | — | Minnesota |
| 31 | Christ Haas | 70 | Head | Farmer | Minnesota |
| 32 | Mary Haas THIS PERSON | 60 | Wife | — | Minnesota |
| 33 | Matt Haas | 29 | Son | Laborer | Minnesota |
| 34 | Francis Haas | 24 | Son | Farm Work | Minnesota |
| 35 | Walter Haas | 23 | Son | Farm Work | Minnesota |
| 36 | Clarence Haas | 20 | Son | Laborer | Minnesota |
| 37 | H. G. Peterson | 67 | Head | Farmer | Iowa |
| 38 | Wifke Peterson | 66 | Wife | — | Iowa |
| 39 | Elisabeth Peterson | 43 | Daughter | — | Minnesota |
| 40 | Tebettie Peterson | 21 | Daughter | — | Minnesota |
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)