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John Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hampden-County, Massachusetts
Our Model Tree links this John Sullivan across the 1920, 1930 and 1940 US Censuses in Hampden-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1908), then head of a 3-person household.
Age 32
b. ~1908
Male
Son
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hampden-County, Massachusetts |
| Surname | Sullivan |
| Given Name | John F. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Hampden |
| Additional Details | |
| Occupation | Agent |
| Industry | Life Ins. Co. |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 160 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Agent |
| Township / Ward | Springfield |
| Est. Birth Year | ~1908 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Gertrude Sullivan | Daughter | — | 29 | ~1911 |
| Gertrude Sullivan | Head | — | 60 | ~1880 |
| John Sullivan | Son | — | 32 | ~1908 |
Census Appearances
1920
Hampden, Massachusetts
Son, age 9
Hampden, Massachusetts · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | John F Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Hampden, Massachusetts
Son, age 20
Hampden, Massachusetts · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | John F., Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Laborer |
| Industry | Sport Goods |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Hampden-County, Massachusetts
Son, age 32
Hampden-County, Massachusetts · implied b. ~1908 — 3 household members
| Surname | Sullivan |
| Given Name | John F. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Hampden |
| Occupation | Agent |
| Industry | Life Ins. Co. |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 160 |
| Highest Grade | H 4 |
| 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 John Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Sullivan (~0.92 confidence) and father John Sullivan (~0.92 confidence) and mother Gertrude Sullivan (~0.92 confidence) and mother Nora Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Sullivan
b. ~1881
Source father
● Household
· direct · ~0.92
Father
John Sullivan
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Gertrude Sullivan
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Nora Sullivan
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Sullivan
Son · 1940 · age 32 · b. ~1908 · Massachusetts
★ You are viewing this record
Sibling
Gertrude Sullivan
Sibling · 1940 · age 29
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 — Hampden-County, Massachusetts
Open full size
1940 US Federal Census — Hampden-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01709-00327)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gladys Halcup | 43 | Lodger | — | Massachusetts |
| 2 | Adelaide Nichols | 83 | Lodger | — | Massachusetts |
| 3 | William H. Haring | 51 | Head | Gardener | Massachusetts |
| 4 | Frances Haring | 54 | Wife | — | New York |
| 5 | Mary E. Holden | 63 | Head | — | New York |
| 6 | Ella Dennis | 63 | Lodger | — | Connecticut |
| 7 | Rodger Raymond | 34 | Lodger | Salesman | Rhode Island |
| 8 | George Blair | 70 | Head | — | Massachusetts |
| 9 | Minnie Blair | 77 | Wife | — | Connecticut |
| 10 | Jessie Gorton | 39 | Daughter | — | Massachusetts |
| 11 | Eleanor L. Frye | 57 | Head | — | Massachusetts |
| 12 | Irma F. Frye | 29 | Daughter | Bookkeeper | Massachusetts |
| 13 | Mary E. Frye | 21 | Daughter | Clerk | Massachusetts |
| 14 | Catherine Reynolds | 73 | Head | — | Maine |
| 15 | Walter Reynolds | 50 | Son | Laborer | Massachusetts |
| 16 | Mary Bowman | 42 | Daughter | — | Massachusetts |
| 17 | John H. Shay | 46 | Head | Mailman | Illinois |
| 18 | Mildred Shay | 35 | Wife | — | Maine |
| 19 | John H. Jr. Shay | 12 | Son | — | Massachusetts |
| 20 | Grace E. Shay | 11 | Daughter | — | Massachusetts |
| 21 | Joan Shay | 1 | Daughter | — | Massachusetts |
| 22 | Columbia E. Johnson | 26 | Head | — | Virginia |
| 23 | Commander Johnson | 34 | Son | Caretaker | New York |
| 24 | Arthur Davies | 72 | Head | Jeweler | Vermont |
| 25 | Caroline Davies | 64 | Wife | — | Michigan |
| 26 | Edwin S. Nelmes | 48 | Head | Salesman | Massachusetts |
| 27 | Eva S. Nelmes | 47 | Wife | — | New York |
| 28 | Edwin S. Nelmes | 25 | Son | Clerk | Massachusetts |
| 29 | Charles H. Nelmes | 16 | Son | — | Massachusetts |
| 30 | Phillippe P. Page | 71 | Head | — | New York |
| 31 | Emma Page | 75 | Wife | — | Pennsylvania |
| 32 | William Radcliffe | 61 | Head | Burnisher | Eire |
| 33 | Mary Radcliffe | 60 | Wife | — | Eire |
| 34 | Bernice Radcliffe | 24 | Daughter | Clerk | Massachusetts |
| 35 | Gertrude Sullivan | 60 | Head | — | Massachusetts |
| 36 | John F. Jr. Sullivan THIS PERSON | 32 | Son | Agent | Massachusetts |
| 37 | Gertrude M. Sullivan | 29 | Daughter | Social Worker | Massachusetts |
| 38 | Harold W. Robinson | 52 | Head | Principal School | New Hampshire |
| 39 | Le Veronica Robinson | 54 | Wife | — | New York |
| 40 | Mary E. Bloomer | 63 | Head | Teacher | Iowa |
Pedigree Summary
John + 1 sibling
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)