MD
Mary Dudley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hampden-County, Massachusetts
Our Model Tree links this Mary Dudley across the 1930 and 1940 US Censuses in Hampden-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 8-person household.
Age 15
b. ~1925
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hampden-County, Massachusetts |
| Surname | Dudley |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Mittineague |
| 1935 Residence (County) | Hampden |
| Additional Details | |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Mittineague |
| Est. Birth Year | ~1925 |
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 |
|---|---|---|---|---|
| Roy Dudley | Head | — | 40 | ~1900 |
| Mary Dudley | Daughter | — | 15 | ~1925 |
| Margery Dudley | Daughter | — | 2 | ~1938 |
| Neil Dudley | Son | — | 13 | ~1927 |
| Richard Dudley | Son | — | 9 | ~1931 |
| Roy Dudley | Son | — | 17 | ~1923 |
| Alice Dudley | Daughter | — | 3 | ~1937 |
| Allen Dudley | Son | — | 11 | ~1929 |
Census Appearances
1930
Hampden, Massachusetts
Daughter, age 5
Hampden, Massachusetts · implied b. ~1925 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dudley |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | New York |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Hampden-County, Massachusetts
Daughter, age 15
Hampden-County, Massachusetts · implied b. ~1925 — 8 household members
| Surname | Dudley |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Mittineague |
| 1935 Residence (County) | Hampden |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Dudley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dudley
Daughter · 1940 · age 15 · b. ~1925 · Massachusetts
★ You are viewing this record
Sibling
Richard Dudley
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margery Dudley
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roy Dudley
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Dudley
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Allen Dudley
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Neil Dudley
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 — Hampden-County, Massachusetts
Open full size
1940 US Federal Census — Hampden-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01598-00730)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret Scully | 14 | Daughter | — | Massachusetts |
| 42 | Richard Scully | 10 | Son | — | Massachusetts |
| 43 | Edmund Scully | 8 | Son | — | Massachusetts |
| 44 | Marilyn Scully | 5 | Daughter | — | Massachusetts |
| 45 | Janet Scully | 3 | Daughter | — | Massachusetts |
| 46 | Robert D. O'Brien | 27 | Head | Lens Grinder | Massachusetts |
| 47 | Angelina O'Brien | 28 | Wife | — | Vermont |
| 48 | Robert O'Brien | 3 | Son | — | Massachusetts |
| 49 | Paul O'Brien | 2 | Son | — | Massachusetts |
| 50 | Frederick Shepard | 31 | Head | Cashier & Salesman | Massachusetts |
| 51 | Rhea D. Shepard | 28 | Wife | — | Massachusetts |
| 52 | Maureen Shepard | 5 | Daughter | — | Massachusetts |
| 53 | Warren Larivee | 43 | Head | Locomotive Fireman | Vermont |
| 54 | Estelle Larivee | 37 | Wife | Solderer | Massachusetts |
| 55 | Marilyn Larivee | 17 | Daughter | — | Vermont |
| 56 | Warren Jr. Larivee | 16 | Son | — | Massachusetts |
| 57 | Warren Larivee | 13 | Son | — | Massachusetts |
| 58 | Joseph D. Yellowneck | 36 | Head | Machinist | Massachusetts |
| 59 | Victoria O. Yellowneck | 32 | Wife | Saleslady | Massachusetts |
| 60 | William Yellowneck | 12 | Son | — | Massachusetts |
| 61 | Jean Yellowneck | 10 | Daughter | — | Massachusetts |
| 62 | John J. D. Mceachern | 60 | Head | Junior Timekeeper | Massachusetts |
| 63 | Jennie E. Mceachern | 63 | Wife | — | Michigan |
| 64 | Adolph Ryll | 31 | Head | Stock Clerk | Massachusetts |
| 65 | Mary G. D. Ryll | 35 | Wife | — | Connecticut |
| 66 | Edmund D. Longy | 42 | Head | Inspector & Assembler | Massachusetts |
| 67 | Blanche Longy | 42 | Wife | — | Massachusetts |
| 68 | Arthur Longy | 14 | Son | — | Massachusetts |
| 69 | William H. Deacon | 29 | Head | General Office Work | Massachusetts |
| 70 | Lois D. Deacon | 26 | Wife | — | Massachusetts |
| 71 | Roy H. D. Dudley | 40 | Head | Spline Grinder | New York |
| 72 | Roy W. Jr. Dudley | 17 | Son | — | Massachusetts |
| 73 | Mary Dudley THIS PERSON | 15 | Daughter | — | Massachusetts |
| 74 | Neil D. Dudley | 13 | Son | — | Massachusetts |
| 75 | Allen Dudley | 11 | Son | — | Massachusetts |
| 76 | Richard Dudley | 9 | Son | — | Massachusetts |
| 77 | Alice Dudley | 3 | Daughter | — | Massachusetts |
| 78 | Margery Dudley | 2 | Daughter | — | Massachusetts |
| 79 | Mary V. D. Marsh | 46 | Head | — | Massachusetts |
| 80 | James J. Marsh | 20 | Son | — | Massachusetts |
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)