MC
Mary Coughlin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Freeborn-County, Minnesota
Our Model Tree links this Mary Coughlin across the 1930 and 1940 US Censuses in Freeborn-County, Minnesota (XGBoost, ~Confirmed) — first a spouse (b.~1899), then head of a 9-person household.
Age 41
b. ~1899
Female
Spouse
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Freeborn-County, Minnesota |
| Surname | Coughlin |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Steele |
| Additional Details | |
| Hours Worked | 45 |
| Highest Grade | Hs 4 |
| 1935 Residence | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Newry |
| Est. Birth Year | ~1899 |
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 |
|---|---|---|---|---|
| Clair Coughlin | Son | — | 4 | ~1936 |
| Robert Coughlin | Son | — | 7 | ~1933 |
| Charles Coughlin | Son | — | 9 | ~1931 |
| Howard Coughlin | Son | — | 14 | ~1926 |
| Paul Coughlin | Son | — | 15 | ~1925 |
| Gerald Coughlin | Son | — | 12 | ~1928 |
| Kathleen Coughlin | Daughter | — | 2 | ~1938 |
| Tom Coughlin | Head | — | 45 | ~1895 |
| Mary Coughlin | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Freeborn, Minnesota
Spouse, age 31
Freeborn, Minnesota · implied b. ~1899 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coughlin |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 17 |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Freeborn-County, Minnesota
Spouse, age 41
Freeborn-County, Minnesota · implied b. ~1899 — 9 household members
| Surname | Coughlin |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Steele |
| Hours Worked | 45 |
| Highest Grade | Hs 4 |
| 1935 Residence | Minnesota |
| 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 Coughlin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Coughlin
Spouse · 1940 · age 41 · b. ~1899 · 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 — Freeborn-County, Minnesota
Open full size
1940 US Federal Census — Freeborn-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01922-00845)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Arthur Willmert | 44 | Head | Farmer | Minnesota |
| 42 | Dorothy Willmert | 36 | Wife | — | Minnesota |
| 43 | Richard Willmert | 7 | Son | — | Minnesota |
| 44 | Justine Willmert | 5 | Daughter | — | Minnesota |
| 45 | Bryan Willmert | 4 | Son | — | Minnesota |
| 46 | J. Carroll Willmert | 1 | Son | — | Minnesota |
| 47 | Tom Coughlin | 45 | Head | Farmer | Minnesota |
| 48 | Mary Coughlin THIS PERSON | 41 | Wife | — | Minnesota |
| 49 | Paul Coughlin | 15 | Son | Farm Laborer | Minnesota |
| 50 | Howard Coughlin | 14 | Son | — | Minnesota |
| 51 | Gerald Coughlin | 12 | Son | — | Minnesota |
| 52 | Charles Coughlin | 9 | Son | — | Minnesota |
| 53 | Robert Coughlin | 7 | Son | — | Minnesota |
| 54 | Clair Coughlin | 4 | Son | — | Minnesota |
| 55 | Kathleen Coughlin | 2 | Daughter | — | Minnesota |
| 56 | Albert Molen | 66 | Head | Farmer | Minnesota |
| 57 | Ella Molen | 52 | Wife | — | Minnesota |
| 58 | Lennie Molen | 31 | Son | Farm Laborer | Minnesota |
| 59 | Clarence Molen | 19 | Son | Farm Laborer | Minnesota |
| 60 | Evelyn Molen | 15 | Daughter | — | Minnesota |
| 61 | Arthur Molen | 12 | Son | — | Minnesota |
| 62 | Elmer Kruger | 47 | Head | Farmer | Iowa |
| 63 | Elsie Kruger | 39 | Wife | — | Minnesota |
| 64 | Elmer Jr. Kruger | 17 | Son | — | Minnesota |
| 65 | Esther Kruger | 11 | Daughter | — | Minnesota |
| 66 | Gordon Kruger | 9 | Son | — | Minnesota |
| 67 | Robert Kruger | 6 | Son | — | Minnesota |
| 68 | Hazel Jean Kruger | 5 | Daughter | — | Minnesota |
| 69 | Lloyd S. Lester | 33 | Head | Farmer | Iowa |
| 70 | Anne Lester | 27 | Wife | — | Minnesota |
| 71 | Marie Lester | 4 | Daughter | — | Minnesota |
| 72 | Charlene Lester | 3 | Daughter | — | Minnesota |
| 73 | Loren Lester | 1 | Son | — | Minnesota |
| 74 | Nordahl Tollefson | 29 | Head | Farmer | Minnesota |
| 75 | Marion Tollefson | 19 | Wife | — | Minnesota |
| 76 | Marvin Koch | 22 | Laborer | Laborer | Kansas |
| 77 | Charles Chamelik | 33 | Head | Farmer | Minnesota |
| 78 | Henry Chamelik | 31 | Brother | Farmer | Minnesota |
| 79 | Helmer Christianson | 36 | Head | Farmer | Minnesota |
| 80 | Alma Christianson | 31 | Wife | — | 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)