MD
Mary Dunlap — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Norfolk-County, Massachusetts
Our Model Tree links this Mary Dunlap across the 1930 and 1940 US Censuses in Norfolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1904), then head of a 7-person household.
Age 36
b. ~1904
Female
Spouse
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Norfolk-County, Massachusetts |
| Surname | Dunlap |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Quincy |
| 1935 Residence (County) | Norfolk |
| Naturalization Status | Alien |
| Additional Details | |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Quincy |
| Est. Birth Year | ~1904 |
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 |
|---|---|---|---|---|
| Mary Dunlap | Daughter | — | 9 | ~1931 |
| Hugh Dunlap | Son | — | 14 | ~1926 |
| Elizabeth Dunlap | Daughter | — | ~1940 | |
| Jean Dunlap | Daughter | — | 6 | ~1934 |
| Daniel Dunlap | Son | — | 12 | ~1928 |
| Mary Dunlap | Spouse | — | 36 | ~1904 |
| John Dunlap | Head | — | 36 | ~1904 |
Census Appearances
1930
Norfolk, Massachusetts
Other, age 26
Norfolk, Massachusetts · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunlop |
| Given Name | Mary R |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Alien |
| Year of Immigration | 1921 |
| Age at First Marriage | 21 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Norfolk-County, Massachusetts
Spouse, age 36
Norfolk-County, Massachusetts · implied b. ~1904 — 7 household members
| Surname | Dunlap |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Quincy |
| 1935 Residence (County) | Norfolk |
| Naturalization Status | Alien |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Dunlap across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dunlap
Spouse · 1940 · age 36 · b. ~1904 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Norfolk-County, Massachusetts
Open full size
1940 US Federal Census — Norfolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01632-00113)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William H. Buckley | 53 | Head | Recreation Instructor | Massachusetts |
| 42 | Mary E. Buckley | 78 | Mother | — | Iowa |
| 43 | Winifred R. Spinney | 46 | Head | — | Canada English |
| 44 | Ralph Spinney | 30 | Son | Truck Driver | Massachusetts |
| 45 | James Spinney | 25 | Son | Carpenter | Massachusetts |
| 46 | Shirley Spinney | 25 | Daughter in law | — | Vermont |
| 47 | Benjamin Maxwell | 31 | Head | Tiller Clerk | Massachusetts |
| 48 | Dorothy M. Maxwell | 35 | Wife | — | Massachusetts |
| 49 | Grace Maxwell | 8 | Daughter | — | Massachusetts |
| 50 | Franklin Maxwell | 6 | Son | — | Massachusetts |
| 51 | Ivan Messias | 41 | Head | Foreman Assistant | West Indies |
| 52 | Marion S. Messias | 35 | Wife | — | Massachusetts |
| 53 | Robert Messias | 9 | Son | — | Massachusetts |
| 54 | Doris Messias | 8 | Daughter | — | Massachusetts |
| 55 | Harold Messias | 4 | Son | — | Massachusetts |
| 56 | Elizabeth Messias | 2 | Daughter | — | Massachusetts |
| 57 | John Dunlap | 36 | Head | Brass Molder | Scotland |
| 58 | Mary Dunlap THIS PERSON | 36 | Wife | — | Scotland |
| 59 | Hugh Dunlap | 14 | Son | — | Massachusetts |
| 60 | Daniel Dunlap | 12 | Son | — | Massachusetts |
| 61 | Mary Dunlap | 9 | Daughter | — | Massachusetts |
| 62 | Jean Dunlap | 6 | Daughter | — | Massachusetts |
| 63 | Elizabeth Dunlap | 0 | Daughter | — | Massachusetts |
| 64 | Richard R. Renshaw | 42 | Head | Motion Picture Operator | New York |
| 65 | Angelina Renshaw | 30 | Wife | — | Massachusetts |
| 66 | Richard Renshaw | 7 | Son | — | Massachusetts |
| 67 | Claire Renshaw | 4 | Daughter | — | Massachusetts |
| 68 | Mary Renshaw | 2 | Daughter | — | Massachusetts |
| 69 | George R. Golding | 46 | Head | Roofer | Massachusetts |
| 70 | Grace Golding | 40 | Wife | — | Massachusetts |
| 71 | Bertha Golding | 13 | Daughter | — | Massachusetts |
| 72 | George Jr. Golding | 16 | Son | — | Massachusetts |
| 73 | Charles Travis | 53 | Head | Rivet Maker | Massachusetts |
| 74 | Minnie Travis | 51 | Sister | Stenographer | Massachusetts |
| 75 | Frederick Ducett | 35 | Head | Rivet Maker | Canada English |
| 76 | Ellen Ducett | 31 | Wife | — | Massachusetts |
| 77 | Gerry Andrews | 36 | Head | Shoe Designer | Maine |
| 78 | Mary E. Andrews | 38 | Wife | — | Massachusetts |
| 79 | Gail Andrews | 17 | Son | — | Maine |
| 80 | Joseph Andrews | 16 | 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)