MC
Mary Carr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wapello-County, Iowa
Our Model Tree links this Mary Carr across the 1920, 1930 and 1940 US Censuses in Wapello-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1881), then head of a 3-person household.
Age 59
b. ~1881
Female
Spouse
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wapello-County, Iowa |
| Surname | Carr |
| Given Name | Mary Ann |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Ottumwa |
| 1935 Residence (County) | Wapello County |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Township / Ward | Ottumwa |
| Est. Birth Year | ~1881 |
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 |
|---|---|---|---|---|
| Viola Carr | Daughter | — | 32 | ~1908 |
| Michael Carr | Head | — | 61 | ~1879 |
| Mary Carr | Spouse | — | 59 | ~1881 |
Census Appearances
1920
Wapello, Iowa
Spouse, age 39
Wapello, Iowa · implied b. ~1881 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carr |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1881 |
| Naturalization Status | First papers filed |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1930
Wapello, Iowa
Other, age 48
Wapello, Iowa · implied b. ~1882 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carr |
| Given Name | Mary Ann |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1882 |
| Age at First Marriage | 22 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Wapello-County, Iowa
Spouse, age 59
Wapello-County, Iowa · implied b. ~1881 — 3 household members
| Surname | Carr |
| Given Name | Mary Ann |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Ottumwa |
| 1935 Residence (County) | Wapello County |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Carr across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Carr
Spouse · 1940 · age 59 · b. ~1881 · Iowa
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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 — Wapello-County, Iowa
Open full size
1940 US Federal Census — Wapello-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01209-00815)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary King | 18 | Daughter | — | Iowa |
| 2 | Carl Jennings | 25 | Head | Laborer | Iowa |
| 3 | Virginia Jennings | 23 | Wife | — | Missouri |
| 4 | Gary Jennings | 2 | Son | — | Iowa |
| 5 | Michael Carr | 61 | Head | Custodian | Iowa |
| 6 | Mary Ann Carr THIS PERSON | 59 | Wife | — | England |
| 7 | Viola May Carr | 32 | Daughter | Bookkeeper | Iowa |
| 8 | Axel Larson | 36 | Head | Carpenter | Iowa |
| 9 | Hazel Larson | 31 | Wife | — | Iowa |
| 10 | Robert Larson | 9 | Son | — | Iowa |
| 11 | Floyd Torrence | 29 | Head | Adver. Agent | Iowa |
| 12 | Mildred Torrence | 26 | Wife | — | Iowa |
| 13 | Nancy Torrence | 4 | Daughter | — | Iowa |
| 14 | James Torrence | 0 | Son | — | Iowa |
| 15 | Frances Strunce | 33 | Head | Agent | Iowa |
| 16 | Margaret Strunce | 30 | Wife | — | Iowa |
| 17 | Nancy Strunce | 3 | Daughter | — | Iowa |
| 18 | Edward Strunce | 0 | Son | — | Iowa |
| 19 | Dana Edith Strunce | 22 | Lodger | — | Iowa |
| 20 | Harry I. Ward | 54 | Head | Clerk | Iowa |
| 21 | Eva D. Ward | 50 | Wife | — | Iowa |
| 22 | Mary V. Ward | 23 | Daughter | — | Iowa |
| 23 | Forest A. Wolf | 28 | Head | Engineer | Iowa |
| 24 | Irene Wolf | 28 | Wife | — | Iowa |
| 25 | Lyle Wolf | 2 | Son | — | Iowa |
| 26 | Kay Wolf | 1 | Son | — | Iowa |
| 27 | David Shute | 88 | Grandfather | — | Iowa |
| 28 | Casm Mccarty | 34 | Head | Butcher | Iowa |
| 29 | Nellie Mccarty | 30 | Wife | — | Iowa |
| 30 | Donna Mccarty | 12 | Daughter | — | Iowa |
| 31 | Wayne Mccarty | 7 | Son | — | Iowa |
| 32 | Phillip Mccarty | 4 | Son | — | Iowa |
| 33 | Dan R. Findlay | 31 | Head | Assis. Manager | Iowa |
| 34 | Rozella Findlay | 30 | Wife | — | Iowa |
| 35 | Gary Findlay | 2 | Son | — | Iowa |
| 36 | Alvin Murphy | 44 | Head | Laborer | Iowa |
| 37 | Florence Murphy | 43 | Wife | — | Iowa |
| 38 | Donald Murphy | 20 | Son | Laborer | Iowa |
| 39 | Dorothy Murphy | 18 | Daughter | Telephone Op. | Iowa |
| 40 | Delores Murphy | 16 | Daughter | — | 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)