MD
Mary Daugherty — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-County, Minnesota
Our Model Tree links this Mary Daugherty across the 1930 and 1940 US Censuses in St.-Louis-County, Minnesota (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 7-person household.
Age 18
b. ~1922
Female
Daughter
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Minnesota |
| Surname | Daugherty |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Duluth city |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Duluth City |
| Est. Birth Year | ~1922 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Russel Daugherty | Son | — | 2 | ~1938 |
| Robert Daugherty | Son | — | 11 | ~1929 |
| Arthur Daugherty | Head | — | 45 | ~1895 |
| Helen Daugherty | Daughter | — | 13 | ~1927 |
| Arthur Daugherty | Son | — | 9 | ~1931 |
| Harriet Daugherty | Spouse | — | 39 | ~1901 |
| Mary Daugherty | Daughter | — | 18 | ~1922 |
Census Appearances
1930
St Louis, …
Daughter, age 9
St Louis, Minnesota · implied b. ~1921 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Daugherty |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
St.-Louis-County, Minnesota
Daughter, age 18
St.-Louis-County, Minnesota · implied b. ~1922 — 7 household members
| Surname | Daugherty |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Duluth city |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 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 Daugherty across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Daugherty
Daughter · 1940 · age 18 · b. ~1922 · Minnesota
★ You are viewing this record
Sibling
Russel Daugherty
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Daugherty
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Daugherty
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Daugherty
Sibling · 1940 · age 9
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 — St.-Louis-County, Minnesota
Open full size
1940 US Federal Census — St.-Louis-County, Minnesota
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01972-00281)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Iner Norgren | 43 | Head | Cement Finisher | Wisconsin |
| 2 | Esther Norgren | 43 | Wife | — | Minnesota |
| 3 | Virginia Norgren | 12 | Daughter | — | Minnesota |
| 4 | Shirley Norgren | 8 | Daughter | — | Wisconsin |
| 5 | Charles Norgren | 5 | Son | — | Minnesota |
| 6 | Walter Johnson | 28 | Head | Laborer | Minnesota |
| 7 | Evelyn Johnson | 27 | Wife | — | Minnesota |
| 8 | Gerald Johnson | 8 | Son | — | Minnesota |
| 9 | Ronald Johnson | 5 | Son | — | Minnesota |
| 10 | Selma Johnson | 0 | Daughter | — | Minnesota |
| 11 | John W Latour | 64 | Head | Truck Driver | Canada Eng |
| 12 | Lucy Latour | 45 | Wife | — | Minnesota |
| 13 | Lawrence Latour | 20 | Son | New Worker | Minnesota |
| 14 | William Latour | 15 | Son | — | Minnesota |
| 15 | James Latour | 11 | Son | — | Minnesota |
| 16 | William Johnson | 64 | Head | Farmer | Sweden |
| 17 | Selma Johnson | 63 | Wife | — | Sweden |
| 18 | Helen Johnson | 33 | Daughter | — | Minnesota |
| 19 | Richard Johnson | 16 | Son | — | Minnesota |
| 20 | Peter Lindblom | 73 | Head | — | Sweden |
| 21 | Effie Lindblom | 54 | Wife | — | Kentucky |
| 22 | George Daugherty | 60 | Head | Laborer | Canada Eng |
| 23 | Mary Daugherty | 83 | Mother | — | Canada Eng |
| 24 | Charles E Daugherty | 58 | Brother | — | Minnesota |
| 25 | Emilly M Daugherty | 52 | Sister | — | Minnesota |
| 26 | William Martin | 53 | Head | Construction Lineman | Missouri |
| 27 | Evelyn Martin | 27 | Wife | — | Wisconsin |
| 28 | Florence Martin | 8 | Daughter | — | Minnesota |
| 29 | Ann E Farley | 64 | Head | — | Michigan |
| 30 | Arthur Daugherty | 45 | Head | Laborer | Minnesota |
| 31 | Harriet Daugherty | 39 | Wife | — | Minnesota |
| 32 | Mary Jane Daugherty THIS PERSON | 18 | Daughter | — | Minnesota |
| 33 | Helen Daugherty | 13 | Daughter | — | Minnesota |
| 34 | Robert E Daugherty | 11 | Son | — | Minnesota |
| 35 | Arthur Jr. Daugherty | 9 | Son | — | Minnesota |
| 36 | Russel Daugherty | 2 | Son | — | Minnesota |
| 37 | Albert Shinski | 30 | Head | Laborer | Ohio |
| 38 | Helen Shinski | 21 | 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)