MD
Mary Dwyer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Vigo-County, Indiana
Our Model Tree links this Mary Dwyer across the 1930 and 1940 US Censuses in Vigo-County, Indiana (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Female
Daughter
Born: Indiana
Separated
1940 Census Record Details
| Census Year | 1940 |
| Location | Vigo-County, Indiana |
| Surname | Dwyer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Separated |
| Birthplace | Indiana |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Vigo |
| Additional Details | |
| Occupation | New Worker |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | New Worker |
| Township / Ward | Terre Haute |
| Est. Birth Year | ~1920 |
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 |
|---|---|---|---|---|
| Christine Burkhart | Daughter | — | 40 | ~1900 |
| Mary Dwyer | Daughter | — | 20 | ~1920 |
| Frances Pender | Spouse | — | 70 | ~1870 |
| Dorothy Dwyer | Daughter | — | 22 | ~1918 |
| Magon Bolton | Son | — | 38 | ~1902 |
| Roy Dwyer | Son | — | 23 | ~1917 |
| John Pender | Head | — | 62 | ~1878 |
Census Appearances
1930
Clay, Indiana
Daughter, age 10
Clay, Indiana · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dwyer |
| Given Name | Mary F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Vigo-County, Indiana
Daughter, age 20
Vigo-County, Indiana · implied b. ~1920 — 7 household members
| Surname | Dwyer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Separated |
| Birthplace | Indiana |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Vigo |
| Occupation | New Worker |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Dwyer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dwyer
Daughter · 1940 · age 20 · b. ~1920 · Indiana
★ You are viewing this record
Sibling
Magon Bolton
Sibling · 1940 · age 38
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roy Dwyer
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Christine Burkhart
Sibling · 1940 · age 40
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Dwyer
Sibling · 1940 · age 22
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 — Vigo-County, Indiana
Open full size
1940 US Federal Census — Vigo-County, Indiana
Page Contents
25 people indexed on this census page (nara:1940:m-t0627-01103-00868)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gwen Wilson | 23 | Wife | — | Indiana |
| 2 | La Verne Price | 14 | Daughter | — | Montana |
| 3 | Zula Tuttle | 55 | Head | General Office | Indiana |
| 4 | Lucilla Tuttle | 80 | Mother | — | Indiana |
| 5 | John Pender | 62 | Head | Laborer | Illinois |
| 6 | Frances Pender | 70 | Wife | — | Illinois |
| 7 | Magon Bolton | 38 | Son | — | Indiana |
| 8 | Christine Burkhart | 40 | Daughter | — | Indiana |
| 9 | Dorothy Dwyer | 22 | Daughter | Laborer | Indiana |
| 10 | Roy Dwyer | 23 | Son | Laborer | Indiana |
| 11 | Mary Dwyer THIS PERSON | 20 | Daughter | New Worker | Indiana |
| 12 | John Kappes | 21 | Head | General Office | Indiana |
| 13 | Evelyn Kappes | 19 | Daughter | Stenographer | Indiana |
| 14 | Edward Jr Gales | 19 | Son | — | Florida |
| 15 | Raymond Pound | 12 | Boarder | — | Indiana |
| 16 | Jane Affick | 56 | Uncle | — | Illinois |
| 17 | Harry Purcell | 53 | Head | Coal Mine | Indiana |
| 18 | Amelia Purcell | 42 | Wife | — | Illinois |
| 19 | Claude Purcell | 41 | Brother | Laborer | Indiana |
| 20 | Paris Vener | 50 | Head | Blacksmith | Indiana |
| 21 | Mary Vener | 51 | Wife | Elevator Oper. | Indiana |
| 22 | Clara Vener | 55 | Head | — | Indiana |
| 23 | Ramsey A. Vener | 14 | Daughter | — | Indiana |
| 24 | Gloria Vener | 20 | Daughter | — | Indiana |
| 25 | Frank Jr Wheeler | 18 | Lodger | Training | Indiana |
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)