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Mary Laughlin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Swift-County, Minnesota
Our Model Tree links this Mary Laughlin across the 1930 and 1940 US Censuses in Swift-County, Minnesota (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 8-person household.
Age 17
b. ~1923
Female
Daughter
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Swift-County, Minnesota |
| Surname | Laughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Kildare Twp |
| 1935 Residence (County) | Swift |
| Additional Details | |
| Occupation | clerk |
| Industry | Retail General Store |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 63 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Clerk |
| Township / Ward | Kildare Twp |
| Est. Birth Year | ~1923 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Donald Laughlin | Son | — | 8 | ~1932 |
| Les Laughlin | Head | — | 38 | ~1902 |
| Leontine Laughlin | Daughter | — | 13 | ~1927 |
| Carl Laughlin | Son | — | 16 | ~1924 |
| Thomas Laughlin | Son | — | 6 | ~1934 |
| Mary Laughlin | Daughter | — | 17 | ~1923 |
| Evelyn Laughlin | Daughter | — | 14 | ~1926 |
| Ellen Laughlin | Spouse | — | 36 | ~1904 |
Census Appearances
1930
Swift, Minnesota
Daughter, age 7
Swift, Minnesota · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Laughlin |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Swift-County, Minnesota
Daughter, age 17
Swift-County, Minnesota · implied b. ~1923 — 8 household members
| Surname | Laughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Kildare Twp |
| 1935 Residence (County) | Swift |
| Occupation | clerk |
| Industry | Retail General Store |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 63 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| 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 Laughlin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Laughlin
Daughter · 1940 · age 17 · b. ~1923 · Minnesota
★ You are viewing this record
Sibling
Donald Laughlin
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Laughlin
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Laughlin
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Laughlin
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leontine Laughlin
Sibling · 1940 · age 13
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 — Swift-County, Minnesota
Open full size
1940 US Federal Census — Swift-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01963-00328)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George Craymer | 43 | Head | Farmer | Minnesota |
| 2 | Sarah Craymer | 38 | Wife | — | Iowa |
| 3 | Josephine Craymer | 17 | Daughter | — | Minnesota |
| 4 | Delores Craymer | 14 | Daughter | — | Minnesota |
| 5 | Joseph Craymer | 2 | Son | — | Minnesota |
| 6 | John T. Goggin | 30 | Head | Farmer | Minnesota |
| 7 | Lorine Goggin | 27 | Wife | — | South Dakota |
| 8 | John T. Jr. Goggin | 2 | Son | — | Minnesota |
| 9 | Colleen Rose Goggin | 0 | Daughter | — | Minnesota |
| 10 | James Welsh | 68 | Head | Farmer | Minnesota |
| 11 | Elizabeth Welsh | 67 | Wife | — | Minnesota |
| 12 | Mary Welsh | 22 | Daughter | Housekeeper | Minnesota |
| 13 | John Welsh | 62 | Head | Farmer | Minnesota |
| 14 | Rose Welsh | 57 | Sister | — | Minnesota |
| 15 | Elling Swingert | 56 | Head | — | Minnesota |
| 16 | Dena Swingert | 51 | Wife | — | Minnesota |
| 17 | Lawrence Swingert | 27 | Son | Truck Driver | Minnesota |
| 18 | Irvin Swingert | 25 | Son | Farmer | Minnesota |
| 19 | Eldon Swingert | 20 | Son | Farmer | Minnesota |
| 20 | Alice Swingert | 18 | Daughter | — | Minnesota |
| 21 | Bernice Swingert | 16 | Daughter | — | Minnesota |
| 22 | Gladys Swingert | 12 | Daughter | — | Minnesota |
| 23 | Les Laughlin | 38 | Head | Farmer | Minnesota |
| 24 | Ellen Laughlin | 36 | Wife | — | Minnesota |
| 25 | Mary Laughlin THIS PERSON | 17 | Daughter | Clerk | Minnesota |
| 26 | Carl Laughlin | 16 | Son | — | Minnesota |
| 27 | Evelyn Laughlin | 14 | Daughter | — | Minnesota |
| 28 | Leontine Laughlin | 13 | Daughter | — | Minnesota |
| 29 | Donald Laughlin | 8 | Son | — | Minnesota |
| 30 | Thomas Laughlin | 6 | Son | — | Minnesota |
| 31 | Miles Kettering | 39 | Head | Farmer | Michigan |
| 32 | Lila Kettering | 33 | Wife | — | South Dakota |
| 33 | Leah Kettering | 13 | Daughter | — | South Dakota |
| 34 | Dorothy Kettering | 5 | Daughter | — | Minnesota |
| 35 | Clayton Kettering | 4 | Son | — | Minnesota |
| 36 | Ardell Wilson | 23 | Head | Farmer | Minnesota |
| 37 | June Wilson | 16 | Sister | — | Minnesota |
| 38 | Elsie Johnson | 40 | Aunt | Housekeeper | Minnesota |
| 39 | Albin Westberg | 45 | Head | Farmer | Minnesota |
| 40 | Ruth Westberg | 43 | 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)