MD
Mary Dudley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Berkshire-County, Massachusetts
Our Model Tree links this Mary Dudley across the 1930 and 1940 US Censuses in Berkshire-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 7-person household.
Age 12
b. ~1928
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Berkshire-County, Massachusetts |
| Surname | Dudley |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lanesboro |
| 1935 Residence (County) | Berkshire |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Lanesboro |
| Est. Birth Year | ~1928 |
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 |
|---|---|---|---|---|
| Joseph Dudley | Son | — | 6 | ~1934 |
| Mary Dudley | Daughter | — | 12 | ~1928 |
| Florence Dudley | Daughter | — | 2 | ~1938 |
| John Dudley | Son | — | 14 | ~1926 |
| Mazie Dudley | Spouse | — | 43 | ~1897 |
| John Dudley | Head | — | 42 | ~1898 |
| Daniel Dudley | Son | — | 11 | ~1929 |
Census Appearances
1930
Berkshire, Massachusetts
Daughter, age 2
Berkshire, Massachusetts · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dudley |
| Given Name | Mary T. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Connecticut |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Berkshire-County, Massachusetts
Daughter, age 12
Berkshire-County, Massachusetts · implied b. ~1928 — 7 household members
| Surname | Dudley |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lanesboro |
| 1935 Residence (County) | Berkshire |
| Highest Grade | No 8 |
| 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 12 · b. ~1928 · Massachusetts
★ You are viewing this record
Sibling
Florence Dudley
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Dudley
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Dudley
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Dudley
Sibling · 1940 · age 14
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 — Berkshire-County, Massachusetts
Open full size
1940 US Federal Census — Berkshire-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01567-00858)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Paul H. Lewis | 45 | Head | Engineer | Vermont |
| 2 | Lillian G. Lewis | 47 | Wife | — | Conn. |
| 3 | John E. Mccormick | 46 | Head | Clerk | Massachusetts |
| 4 | Catherine M. Mccormick | 45 | Wife | — | Massachusetts |
| 5 | John C. Mccormick | 21 | Son | New Worker | Massachusetts |
| 6 | Michael J. Gunan|Guran | 41 | Head | Bus Operator | Massachusetts |
| 7 | Gertrude A. Gunan|Guran | 40 | Wife | — | Conn. |
| 8 | Clifford E. Allen | 46 | Head | — | Conn. |
| 9 | Louise M. Allen | 43 | Wife | — | Massachusetts |
| 10 | James C. Allen | 8 | Son | — | Massachusetts |
| 11 | Marie Anne Allen | 6 | Daughter | — | Massachusetts |
| 12 | Lorrayne A. Le Cuyer | 17 | Stepdaughter | — | Massachusetts |
| 13 | Rita B. Le Cuyer | 15 | Stepdaughter | — | Massachusetts |
| 14 | John R. Dudley | 42 | Head | Salesman | Conn. |
| 15 | Mazie C. Dudley | 43 | Wife | — | Massachusetts |
| 16 | John F. Dudley | 14 | Son | — | Massachusetts |
| 17 | Mary J. Dudley THIS PERSON | 12 | Daughter | — | Massachusetts |
| 18 | Daniel E. Dudley | 11 | Son | — | Massachusetts |
| 19 | Joseph H. Dudley | 6 | Son | — | Massachusetts |
| 20 | Florence Dudley | 2 | Daughter | — | Massachusetts |
| 21 | Volney M. Haswell | 25 | Head | Engineer | New York |
| 22 | Elizabeth H. Haswell | 27 | Wife | Nurse | Massachusetts |
| 23 | Robert C. Haswell | 2 | Son | — | Massachusetts |
| 24 | Lawrence V. Haswell | 1 | Son | — | Massachusetts |
| 25 | Helen R. Wescott | 16 | Lodger | Housekeeper | New Hampshire |
| 26 | Albert Tyler | 67 | Head | Salesman | Massachusetts |
| 27 | Richard J. Rowe | 60 | Head | Transformer Winder | England |
| 28 | Emma M. Rowe | 61 | Wife | — | Vermont |
| 29 | Louis H. Schneider | 58 | Head | Building Repairman | Massachusetts |
| 30 | Annie M. Schneider | 58 | Wife | — | New York |
| 31 | Earl M. Woodard | 25 | Head | Farm Hand | Mass |
| 32 | Sadie E. Woodard | 24 | Wife | — | Mass |
| 33 | Charles E. Woodard | 3 | Son | — | Mass |
| 34 | Lucy A. Gregory | 61 | Head | — | Massachusetts |
| 35 | Francis B. Gregory | 27 | Son | Manager | Massachusetts |
| 36 | Catherine A. Gregory | 30 | Daughter | Registered Nurse | Massachusetts |
| 37 | Merrill H. Barth | 60 | Head | Attendant | Massachusetts |
| 38 | Gertrude L. Barth | 44 | Wife | — | Massachusetts |
| 39 | Ralph A. Johnston | 40 | Head | Laborer | Vermont |
| 40 | Hilda E. Johnston | 39 | Wife | — | England |
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)