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Joseph Sullivan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Joseph Sullivan across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1896), then head of a 11-person household.
Age 44
b. ~1896
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Sullivan |
| Given Name | Joseph P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Fireman |
| Industry | City of Malden |
| Class of Worker | GW |
| Hours Worked | 84 |
| Income (1939) | 2391 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Fireman |
| Township / Ward | Malden City |
| Est. Birth Year | ~1896 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Agnes Sullivan | Daughter | — | 18 | ~1922 |
| Frances Sullivan | Daughter | — | 13 | ~1927 |
| Anna Sullivan | Daughter | — | 17 | ~1923 |
| Arlene Sullivan | Daughter | — | 1 | ~1939 |
| Maureen Sullivan | Daughter | — | 3 | ~1937 |
| Joseph Sullivan | Head | — | 44 | ~1896 |
| Michael Sullivan | Son | — | 15 | ~1925 |
| Robert Sullivan | Son | — | 6 | ~1934 |
| Lawrence Sullivan | Son | — | 12 | ~1928 |
| Thomas Sullivan | Son | — | 7 | ~1933 |
| Agnes Sullivan | Spouse | — | 38 | ~1902 |
Census Appearances
1930
Middlesex, Massachusetts
Head, age 33
Middlesex, Massachusetts · implied b. ~1897 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Joseph P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 26 |
| Father's Birthplace | New York State |
| Mother's Birthplace | New York State |
| Occupation | Fireman |
| Industry | Fire department |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 44
Middlesex-County, Massachusetts · implied b. ~1896 — 11 household members
| Surname | Sullivan |
| Given Name | Joseph P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden City |
| 1935 Residence (County) | Middlesex |
| Occupation | Fireman |
| Industry | City of Malden |
| Class of Worker | GW |
| Hours Worked | 84 |
| Income (1939) | 2391 |
| Highest Grade | 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 Joseph Sullivan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Joseph Sullivan
Head · 1940 · age 44 · b. ~1896 · 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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01608-00662)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Maurice B. O'Leary | 41 | Head | Compositor | Massachusetts |
| 2 | Mary W. O'Leary | 39 | Wife | — | Massachusetts |
| 3 | Barbara A. O'Leary | 18 | Daughter | New Worker | Massachusetts |
| 4 | Dorothy E. O'Leary | 17 | Daughter | — | Massachusetts |
| 5 | Eugene B. O'Leary | 15 | Son | — | Massachusetts |
| 6 | Joan T. O'Leary | 14 | Daughter | — | Massachusetts |
| 7 | Patricia M. O'Leary | 12 | Daughter | — | Massachusetts |
| 8 | Burke G. O'Leary | 10 | Daughter | — | Massachusetts |
| 9 | Florence Sullivan | 72 | Head | Retired | Ireland |
| 10 | Margaret Sullivan | 29 | Daughter | — | Massachusetts |
| 11 | Catherine Sullivan | 27 | Daughter | — | Massachusetts |
| 12 | Edith B. Slater | 66 | Head | — | Massachusetts |
| 13 | Grace M. Slater | 57 | Sister | Treasurer-Secy | Massachusetts |
| 14 | Clarence H. Anderson | 73 | Head | Laborer | England |
| 15 | Eliza Anderson | 68 | Wife | — | England |
| 16 | Joseph P. Sullivan THIS PERSON | 44 | Head | Fireman | Massachusetts |
| 17 | Agnes E. Sullivan | 38 | Wife | — | Massachusetts |
| 18 | Agnes C. Sullivan | 18 | Daughter | — | Massachusetts |
| 19 | Anna M. Sullivan | 17 | Daughter | — | Massachusetts |
| 20 | Michael Sullivan | 15 | Son | — | Massachusetts |
| 21 | Frances Sullivan | 13 | Daughter | — | Massachusetts |
| 22 | Lawrence Sullivan | 12 | Son | — | Massachusetts |
| 23 | Thomas Sullivan | 7 | Son | — | Massachusetts |
| 24 | Robert Sullivan | 6 | Son | — | Massachusetts |
| 25 | Maureen Sullivan | 3 | Daughter | — | Massachusetts |
| 26 | Arlene Sullivan | 1 | Daughter | — | Massachusetts |
| 27 | Alexander W. Derocher|Derocher | 76 | Head | — | New York |
| 28 | Mae G. Derocher|Derocher | 68 | Wife | — | Maine |
| 29 | William B. Anderson | 52 | Son | Laborer | Massachusetts |
| 30 | Almira Anderson | 38 | Daughter-in-law | — | New York |
| 31 | Eleanor Anderson | 19 | Daughter | — | Massachusetts |
| 32 | John J. Hunt | 71 | Lodger | Custodian | Massachusetts |
| 33 | Gordon D. Atkinson | 46 | Head | Medical Doctor | England |
| 34 | Alma L. Atkinson | 48 | Wife | — | Canada |
| 35 | Gordon D. Atkinson | 14 | Son | — | Massachusetts |
| 36 | Margaret E. Atkinson | 11 | Daughter | — | Massachusetts |
| 37 | Nancy L. Atkinson | 8 | Daughter | — | Massachusetts |
| 38 | Esther E. Heffern | 25 | Maid | Maid | Massachusetts |
| 39 | Alice P. George | 75 | Head | Selling Dresses | Massachusetts |
| 40 | Luella H. Rolfe | 78 | Lodger | — | Massachusetts |
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)