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Jeremiah Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Jeremiah Sullivan across the 1910, 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Jeremiah & John — first a head (b.~1900), then head of a 7-person household.
Age 40
b. ~1900
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Sullivan |
| Given Name | Jeremiah J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Electrician |
| Industry | Electrical |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 800 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Electrician |
| Township / Ward | Boston City |
| Est. Birth Year | ~1900 |
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 Jeremiah | Age | Birth yr |
|---|---|---|---|---|
| John Sullivan | Son | — | 8 | ~1932 |
| Agnes Sullivan | Daughter | — | 6 | ~1934 |
| Dorothea Sullivan | Daughter | — | 10 | ~1930 |
| Ariel Sullivan | Spouse | — | 40 | ~1900 |
| Jeremiah Sullivan | Head | — | 40 | ~1900 |
| Margaret Jenny | Other | — | 45 | ~1895 |
| Jeremiah Sullivan | Son | — | 13 | ~1927 |
Census Appearances
1910
Suffolk, Massachusetts
Son, age 10
Suffolk, Massachusetts · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Jeremiah |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland English |
| Mother's Birthplace | Ireland English |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Suffolk, Massachusetts
Son, age 20
Suffolk, Massachusetts · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Jeremiah |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Electrician |
| Industry | Chocolate Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Other, age 29
Suffolk, Massachusetts · implied b. ~1901 — 46 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Jeremiah |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Driver |
| Industry | Taxi |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Head, age 40
Suffolk-County, Massachusetts · implied b. ~1900 — 7 household members
| Surname | Sullivan |
| Given Name | Jeremiah J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Electrician |
| Industry | Electrical |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 800 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| 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 Jeremiah Sullivan across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jeremiah Sullivan (~0.92 confidence) and father John Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jeremiah Sullivan
b. ~1871
Source father
● Household
· direct · ~0.92
Father
John Sullivan
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Jeremiah Sullivan
Head · 1940 · age 40 · b. ~1900 · Massachusetts
★ You are viewing this record
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
40 people indexed on this census page (nara:1940:m-t0627-01680-00223)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen M. Greer | 37 | Head | Typist | Massachusetts |
| 42 | Shirley J. Greer | 13 | Daughter | — | Massachusetts |
| 43 | Wm. H. Greer | 2 | Son | — | Massachusetts |
| 44 | Rena S. Doherty | 72 | Mother | — | Massachusetts |
| 45 | William Underwood | 50 | Head | Plasterer | Scotland |
| 46 | Irene A. Underwood | 44 | Wife | — | Massachusetts |
| 47 | Ethel Underwood | 20 | Daughter | Mess Worker | Massachusetts |
| 48 | Frederick H. Cott | 65 | Head | Manager | Massachusetts |
| 49 | Mabel L. Cott | 64 | Wife | — | Massachusetts |
| 50 | Elizabeth Mc Donald | 60 | Head | — | Maine |
| 51 | Elizabeth J. Mc Donald | 38 | Daughter | Typist | Massachusetts |
| 52 | John Goodrich | 19 | Lodger | — | Massachusetts |
| 53 | Ada L. Mc Gowan | 61 | Head | — | Massachusetts |
| 54 | Dorothy J. Mc Gowan | 30 | Daughter | Operator | Massachusetts |
| 55 | Mary E. Mc Gowan | 23 | Daughter | Operator | Massachusetts |
| 56 | Alice Haskell | 85 | Lodger | — | Massachusetts |
| 57 | Wm. Lawrence Watson | 50 | Head | Salesman | Massachusetts |
| 58 | Florence A. Watson | 48 | Wife | — | Massachusetts |
| 59 | George Francis Watson | 29 | Son | Chauffeur | Massachusetts |
| 60 | William L. Watson | 27 | Son | Salesman | Massachusetts |
| 61 | Kenneth L. Watson | 22 | Son | Clerk | Massachusetts |
| 62 | Paul J. Watson | 20 | Son | Laborer | Massachusetts |
| 63 | John J. Shea | 37 | Head | Salesman | Massachusetts |
| 64 | Frances R. Shea | 30 | Wife | — | Massachusetts |
| 65 | John J. Shea | 7 | Son | — | Massachusetts |
| 66 | Mary L. Shea | 5 | Daughter | — | Massachusetts |
| 67 | Paul H. Shea | 4 | Son | — | Massachusetts |
| 68 | Rene Hayes | 21 | Brother-in-law | Clerk | Massachusetts |
| 69 | George C. Fischer | 72 | Head | Social Worker | New Jersey |
| 70 | Elizabeth Fischer | 64 | Wife | — | New York |
| 71 | Jeremiah J. Sullivan THIS PERSON | 40 | Head | Electrician | Massachusetts |
| 72 | Ariel Q. Sullivan | 40 | Wife | — | Massachusetts |
| 73 | Jeremiah J. Sullivan | 13 | Son | — | Massachusetts |
| 74 | Dorothea Sullivan | 10 | Daughter | — | Massachusetts |
| 75 | John Sullivan | 8 | Son | — | Massachusetts |
| 76 | Agnes Sullivan | 6 | Daughter | — | Massachusetts |
| 77 | Margaret Jenny | 45 | Sister-in-law | Salesgirl | Massachusetts |
| 78 | A. Blanche Platter | 53 | Head | Clerk | Massachusetts |
| 79 | Ella Cummings | 64 | Housekeeper | — | Canada English |
| 80 | Edna Platter | 51 | Sister | — | Massachusetts |
Pedigree Summary
Jeremiah
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)