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James Dunlap — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this James Dunlap across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 7-person household.
Age 12
b. ~1928
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Dunlap |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | Yes 6 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| 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 James | Age | Birth yr |
|---|---|---|---|---|
| Rita Dunlap | Daughter | — | 23 | ~1917 |
| James Dunlap | Son | — | 12 | ~1928 |
| Claire Dunlap | Daughter | — | 16 | ~1924 |
| Charles Dunlap | Son | — | 25 | ~1915 |
| Joseph Dunlap | Son | — | 21 | ~1919 |
| Josephine Dunlap | Head | — | 48 | ~1892 |
| Irene Dunlap | Daughter | — | 19 | ~1921 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 2
Suffolk, Massachusetts · implied b. ~1928 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunlap |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 12
Suffolk-County, Massachusetts · implied b. ~1928 — 7 household members
| Surname | Dunlap |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Highest Grade | Yes 6 |
| 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 James Dunlap across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Dunlap
Son · 1940 · age 12 · b. ~1928 · Massachusetts
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Sibling
Charles Dunlap
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claire Dunlap
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Dunlap
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Dunlap
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Dunlap
Sibling · 1940 · age 21
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-01668-00620)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Katherine F. Pierce | 63 | Head | Stitcher | Massachusetts |
| 2 | Mary S. Pierce | 17 | niece | — | Massachusetts |
| 6 | Otto O. Schnabel | 55 | Head | Puller | Massachusetts |
| 7 | Mary A. Schnabel | 56 | Wife | — | Massachusetts |
| 8 | Gertrude A. Fleming | 28 | daughter | Stenographer | Massachusetts |
| 9 | Hugh J. Deary | 41 | Head | Electrician | Massachusetts |
| 10 | Marguerite M. Deary | 33 | Wife | — | Massachusetts |
| 11 | Rose Ann Deary | 5 | daughter | — | Massachusetts |
| 12 | Hugh J. Deary | 4 | son | — | Massachusetts |
| 13 | Mary A. Mccarthy | 68 | mother-in-law | — | Ireland |
| 14 | Edward T. Condon | 32 | Head | Trucking | Massachusetts |
| 15 | Ethel M. Condon | 31 | Wife | — | Canada-Eng |
| 16 | Anna May Condon | 5 | daughter | — | Massachusetts |
| 17 | Edward T. Jr. Condon | 6 | son | — | Massachusetts |
| 18 | Walter J. Condon | 4 | son | — | Massachusetts |
| 19 | Redmond B. Condon | 1 | son | — | Massachusetts |
| 20 | Margaret M. Roach | 58 | Head | Matron | Massachusetts |
| 21 | Josephine Dunlap | 48 | Head | — | Massachusetts |
| 22 | Charles F. Dunlap | 25 | son | — | Massachusetts |
| 23 | Rita M. Dunlap | 23 | daughter | Clerk | Massachusetts |
| 24 | Joseph L. Dunlap | 21 | son | Sales Clerk | Massachusetts |
| 25 | Irene I. Dunlap | 19 | daughter | New Worker | Massachusetts |
| 26 | Claire A. Dunlap | 16 | daughter | — | Massachusetts |
| 27 | James Dunlap THIS PERSON | 12 | son | — | Massachusetts |
| 28 | Joseph Fozzo | 56 | Head | Peddler | Italy |
| 29 | Anna M. Fozzo | 51 | Wife | — | Italy |
| 30 | George B. Fozzo | 19 | son | Truck Driver | Italy |
| 31 | Nicholas A. Fozzo | 15 | son | — | Massachusetts |
| 32 | Joseph Jr. Fozzo | 13 | son | — | Massachusetts |
| 33 | Rose Fozzo | 12 | daughter | — | Massachusetts |
| 34 | Michael Fozzo | 24 | son | Painter | Italy |
| 35 | Loretta A. Fozzo | 28 | daughter-in-law | — | Massachusetts |
| 36 | Thomas F. Flanagan | 64 | Head | Custodian | Massachusetts |
| 37 | Louise A. Flanagan | 59 | Wife | — | Canada-Eng |
| 38 | Florence G. Boyd | 31 | daughter | Salesgirl | Massachusetts |
| 39 | Henry M. Flynn | 40 | Head | Salesman | Massachusetts |
| 40 | Edith M. Flynn | 41 | Wife | — | 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)