MD
Mary Dillon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Pennsylvania
Our Model Tree links this Mary Dillon across the 1930 and 1940 US Censuses in Jefferson-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1909), then head of a 8-person household.
Age 31
b. ~1909
Female
Daughter
Born: Pennsylvania
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Pennsylvania |
| Surname | Dillon |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Brookville borough |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Brookville Borough |
| Est. Birth Year | ~1909 |
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 |
|---|---|---|---|---|
| Elizabeth Lynch | Daughter | — | 17 | ~1923 |
| Catherine Lynch | Daughter | — | 21 | ~1919 |
| Mary Dillon | Daughter | — | 31 | ~1909 |
| Josephine Lynch | Daughter | — | 27 | ~1913 |
| Gertrude Lynch | Daughter | — | 25 | ~1915 |
| Gloria Lynch | Head | — | 51 | ~1889 |
| Eugene Dillon | Other | — | 10 | ~1930 |
| Richard Dillon | Son | — | 29 | ~1911 |
Census Appearances
1930
Jefferson, Pennsylvania
Daughter, age 20
Jefferson, Pennsylvania · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dillon |
| Given Name | Mary E |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 20 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Jefferson-County, Pennsylvania
Daughter, age 31
Jefferson-County, Pennsylvania · implied b. ~1909 — 8 household members
| Surname | Dillon |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Brookville borough |
| 1935 Residence (County) | Jefferson |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Dillon across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dillon
Daughter · 1940 · age 31 · b. ~1909 · Pennsylvania
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Sibling
Richard Dillon
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Lynch
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Lynch
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josephine Lynch
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Lynch
Sibling · 1940 · age 17
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 — Jefferson-County, Pennsylvania
Open full size
1940 US Federal Census — Jefferson-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03519-00300)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Chitester | 13 | Son | — | Pennsylvania |
| 2 | Lois Chitester | 4 | Daughter | — | Pennsylvania |
| 3 | Katherine Heidrick | 66 | Head | — | Pennsylvania |
| 4 | John Heidrick | 58 | Brother | — | Pennsylvania |
| 5 | Frank Heidrick | 44 | Brother | — | Pennsylvania |
| 6 | Arlands Van Leer | 45 | Head | Owner | Pennsylvania |
| 7 | Virginia Van Leer | 46 | Wife | — | Pennsylvania |
| 8 | Audrey Van Leer | 16 | Daughter | — | Pennsylvania |
| 9 | John Van Leer | 13 | Son | — | Pennsylvania |
| 10 | William Van Leer | 9 | Son | — | Pennsylvania |
| 11 | Patsy Ann Van Leer | 7 | Daughter | — | Pennsylvania |
| 12 | Gloria Lynch | 51 | Head | — | Pennsylvania |
| 13 | Josephine Lynch | 27 | Daughter | — | Pennsylvania |
| 14 | Gertrude Lynch | 25 | Daughter | Bookkeeper | Pennsylvania |
| 15 | Catherine Lynch | 21 | Daughter | Beautician | Pennsylvania |
| 16 | Elizabeth Lynch | 17 | Daughter | — | Pennsylvania |
| 17 | Mary Dillon THIS PERSON | 31 | Daughter | — | Pennsylvania |
| 18 | Eugene Dillon | 10 | Grandson | — | Pennsylvania |
| 19 | Richard Dillon | 29 | Son | Tead Driver | Pennsylvania |
| 20 | Alfred Mapes | 34 | Head | Clerk | Pennsylvania |
| 21 | Cecelia Mapes | 31 | Wife | — | Pennsylvania |
| 22 | Catherine Mapes | 10 | Daughter | — | Pennsylvania |
| 23 | Nora Butler | 56 | Aunt | — | Pennsylvania |
| 24 | Sanford Mapes | 25 | Brother | — | Pennsylvania |
| 25 | Kate Mapes | 72 | Mother | — | Pennsylvania |
| 26 | Robert B. Kerr | 22 | Head | — | Pennsylvania |
| 27 | Lona Kerr | 25 | Daughter | School Teacher | Pennsylvania |
| 28 | Harry C. Milliren | 59 | Head | Engineer | Pennsylvania |
| 29 | Lulu Milliren | 48 | Wife | — | Pennsylvania |
| 30 | Paul Milliren | 24 | Son | New Worker | Pennsylvania |
| 31 | Mary Milliren | 17 | Son | — | Pennsylvania |
| 32 | Samuel Huling | 60 | Head | Car Repairman | Pennsylvania |
| 33 | Ella Huling | 57 | Wife | Laundress | Pennsylvania |
| 34 | August Neschke | 58 | Head | Dressmaker | Pennsylvania |
| 35 | Ellen Neschke | 54 | Wife | — | Pennsylvania |
| 36 | Edgar Neschke | 33 | Son | Teacher | Pennsylvania |
| 37 | James Neschke | 25 | Son | Clerk | Pennsylvania |
| 38 | Nelson Miller | 21 | Head | Circulation | Pennsylvania |
| 39 | Lorraine Miller | 17 | Wife | Restaurant | Montana |
| 40 | Joseph Richards | 38 | Head | Collector | Pennsylvania |
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)