MH
Mary Harrington — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Redwood-County, Minnesota
Our Model Tree links this Mary Harrington across the 1930 and 1940 US Censuses in Redwood-County, Minnesota (XGBoost, ~Confirmed) — first a daughter (b.~1917), then head of a 9-person household.
Age 23
b. ~1917
Female
Daughter
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Redwood-County, Minnesota |
| Surname | Harrington |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Waterbury |
| 1935 Residence (County) | Redwood |
| Additional Details | |
| Occupation | Nursing |
| Industry | Nursing |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 760 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Nursing |
| Township / Ward | Waterbury |
| Est. Birth Year | ~1917 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Phyllis Harrington | Daughter | — | 22 | ~1918 |
| Loretta Harrington | Daughter | — | 10 | ~1930 |
| Lois Harrington | Daughter | — | 14 | ~1926 |
| Mary Harrington | Daughter | — | 23 | ~1917 |
| Kathryn Harrington | Daughter | — | 11 | ~1929 |
| Gertrude Harrington | Head | — | 48 | ~1892 |
| Donald Harrington | Son | — | 24 | ~1916 |
| Jerome Harrington | Son | — | 20 | ~1920 |
| John Harrington | Son | — | 19 | ~1921 |
Census Appearances
1930
Redwood, Minnesota
Daughter, age 13
Redwood, Minnesota · implied b. ~1917 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harrington |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Redwood-County, Minnesota
Daughter, age 23
Redwood-County, Minnesota · implied b. ~1917 — 9 household members
| Surname | Harrington |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Waterbury |
| 1935 Residence (County) | Redwood |
| Occupation | Nursing |
| Industry | Nursing |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 760 |
| Highest Grade | Hs 4 |
| 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 Harrington across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Harrington
Daughter · 1940 · age 23 · b. ~1917 · Minnesota
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Sibling
Phyllis Harrington
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Harrington
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerome Harrington
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Harrington
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathryn Harrington
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Harrington
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loretta Harrington
Sibling · 1940 · age 10
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 — Redwood-County, Minnesota
Open full size
1940 US Federal Census — Redwood-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01951-00885)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Delores Boulter | 8 | Daughter | — | Minnesota |
| 42 | Gertrude Harrington | 48 | Head | Farmer | Illinois |
| 43 | Jerome Harrington | 20 | Son | Farmer | Minnesota |
| 44 | Lois Harrington | 14 | Daughter | — | Minnesota |
| 45 | Donald J Harrington | 24 | Son | Truck Driver | Minnesota |
| 46 | Mary A Harrington THIS PERSON | 23 | Daughter | Nursing | Minnesota |
| 47 | Phyllis A Harrington | 22 | Daughter | Maid | Minnesota |
| 48 | John A Harrington | 19 | Son | Electrician | Minnesota |
| 49 | Kathryn Harrington | 11 | Daughter | — | Minnesota |
| 50 | Loretta Harrington | 10 | Daughter | — | Minnesota |
| 51 | Otto A Blordow | 38 | Head | Farmer | Minnesota |
| 52 | Margaret H Blordow | 35 | Wife | — | Minnesota |
| 53 | Grace H Blordow | 16 | Daughter | — | Minnesota |
| 54 | Donald A Blordow | 15 | Son | — | Minnesota |
| 55 | Gerald A Blordow | 10 | Son | — | Minnesota |
| 56 | Ruth M Blordow | 6 | Daughter | — | Minnesota |
| 57 | Edward Bauer | 46 | Laborer | Laborer | Minnesota |
| 58 | Carl Lade | 54 | Head | Farmer | Germany |
| 59 | Otto Lade | 48 | Brother | Farmer | Minnesota |
| 60 | Rosie Pfarr | 34 | Niece | Housekeeper | Minnesota |
| 61 | Henry A Backer | 59 | Head | Farmer | Germany |
| 62 | Lena Lavender | 50 | Sister | Housekeeper | Germany |
| 63 | Irene Lavender | 25 | Daughter | Housekeeper | Minnesota |
| 64 | Charlie Prouse | 59 | Laborer | Farm Laborer | Iowa |
| 65 | Albert A Turbes | 34 | Head | Farmer | Minnesota |
| 66 | Agnes M Turbes | 32 | Wife | Farmwife | Minnesota |
| 67 | Donald J Turbes | 4 | Son | — | Minnesota |
| 68 | Marlene Turbes | 3 | Daughter | — | Minnesota |
| 69 | Kenneth Turbes | 2 | Son | — | Minnesota |
| 70 | John A Hagert | 37 | Head | Farmer | Minnesota |
| 71 | Rose M Hagert | 36 | Wife | Housewife | Minnesota |
| 72 | Kathleen M Hagert | 14 | Daughter | — | Minnesota |
| 73 | Bernard M Hagert | 11 | Son | — | Minnesota |
| 74 | La Verne J Hagert | 10 | Son | — | Minnesota |
| 75 | Gladys M Hagert | 8 | Daughter | — | Minnesota |
| 76 | Elmer J Hagert | 6 | Son | — | Minnesota |
| 77 | Phyllis A Hagert | 5 | Daughter | — | Minnesota |
| 78 | Loris F Hagert | 4 | Son | — | Minnesota |
| 79 | George J Arends | 42 | Head | Farmer | Minnesota |
| 80 | Iva P Arends | 22 | Wife | — | Minnesota |
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)