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Mary Harris — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bremer-County, Iowa
Our Model Tree links this Mary Harris across the 1920, 1930 and 1940 US Censuses in Bremer-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1869), then head of a 3-person household.
Age 71
b. ~1869
Female
Head
Born: Wisconsin
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Bremer-County, Iowa |
| Surname | Harris |
| Given Name | Mary A. |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Waverly City |
| 1935 Residence (County) | Bremer |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Waverly City |
| Est. Birth Year | ~1869 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Harris | Head | — | 71 | ~1869 |
| Ralph Harris | Son | — | 30 | ~1910 |
| Charles Harris | Son | — | 46 | ~1894 |
Census Appearances
1920
Bremer, Iowa
Spouse, age 51
Bremer, Iowa · implied b. ~1869 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Bremer, Iowa
Other, age 61
Bremer, Iowa · implied b. ~1869 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Mary E |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 18 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Bremer-County, Iowa
Head, age 71
Bremer-County, Iowa · implied b. ~1869 — 3 household members
| Surname | Harris |
| Given Name | Mary A. |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Waverly City |
| 1935 Residence (County) | Bremer |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Harris across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Harris
Head · 1940 · age 71 · b. ~1869 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Bremer-County, Iowa
Open full size
1940 US Federal Census — Bremer-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01142-00421)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gladys Cutler | 26 | wife | — | Montana |
| 2 | Dale Cutler | 2 | son | — | — |
| 3 | John Schroeder | 47 | head | Hauler | Iowa |
| 4 | Vinnie Schroeder | 46 | wife | — | Iowa |
| 5 | Stephen Johnson | 60 | head | Cattle Buyer | Germany |
| 6 | Minnie Johnson | 54 | wife | — | Iowa |
| 7 | Martin Johnson | 13 | son | — | Iowa |
| 8 | Mary Cullinan | 43 | head | — | Eire |
| 9 | Leo D. Moulton | 56 | head | Salesman | Minnesota |
| 10 | Lydia Moulton | 52 | wife | — | Iowa |
| 11 | Edna Moulton | 26 | daughter | Bookkeeper | Iowa |
| 12 | John Ingle | 30 | head | Field Supervisor | Utah |
| 13 | Caroline Ingle | 25 | wife | — | Iowa |
| 14 | Lois Ann Ingle | 1 | daughter | — | — |
| 15 | Joseph Truax | 45 | head | Co-Owner | Nebraska |
| 16 | Grace Truax | 42 | wife | — | Washington |
| 17 | Theresa Bennett | 75 | mother-in-law | — | Germany |
| 18 | George Dollar | 48 | head | Co-Owner | Iowa |
| 19 | Florence Dollar | 47 | wife | — | Minnesota |
| 20 | Raymond Scott | 48 | head | Barber | Iowa |
| 21 | Nellie Scott | 45 | wife | Cashier | Iowa |
| 22 | Lone Foster | 28 | lodger | Beautician | Iowa |
| 23 | Rolf Christofferson | 20 | lodger | Clerical Worker | Wisconsin |
| 24 | Louis Hill | 37 | head | Printer | South Dakota |
| 25 | Helen Hill | 39 | wife | — | Iowa |
| 26 | Maxine Hill | 7 | daughter | — | Iowa |
| 27 | Phillis Hill | 5 | daughter | — | — |
| 28 | Albert D. Bessmer | 72 | head | — | Iowa |
| 29 | Anna G. Bessmer | 71 | wife | — | Iowa |
| 30 | Julius Dutkowitz | 71 | head | — | Germany |
| 31 | Albert Dutkowitz | 43 | son | Salesman | Iowa |
| 32 | Martha Dutkowitz | 25 | wife | — | Iowa |
| 33 | Lloyd Krause | 43 | head | Salesman | Iowa |
| 34 | Mathilda Krause | 40 | wife | — | Illinois |
| 35 | John Krause | 17 | son | — | Iowa |
| 36 | Donna Kay Krause | 7 | daughter | — | Iowa |
| 37 | Mary A. Harris THIS PERSON | 71 | head | — | Wisconsin |
| 38 | Charles Harris | 46 | son | Proprietor | Wisconsin |
| 39 | Ralph Harris | 30 | son | Waiter | Iowa |
| 40 | Albert Peterson | 25 | head | Laborer | 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)