GS
George Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hampden-County, Massachusetts
Our Model Tree links this George Sullivan across the 1920, 1930 and 1940 US Censuses in Hampden-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Mary & James — first a son (b.~1918), then head of a 9-person household.
Age 22
b. ~1918
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hampden-County, Massachusetts |
| Surname | Sullivan |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Hampden |
| Additional Details | |
| Occupation | Balancer |
| Industry | West. Electric |
| Class of Worker | PW |
| Hours Worked | 43 |
| Income (1939) | 450 |
| Highest Grade | H 3 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Balancer |
| Township / Ward | Springfield |
| Est. Birth Year | ~1918 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to George | Age | Birth yr |
|---|---|---|---|---|
| Claire Sullivan | Daughter | — | 18 | ~1922 |
| Elizabeth Sullivan | Daughter | — | 12 | ~1928 |
| Eillen Sullivan | Daughter | — | 20 | ~1920 |
| James Sullivan | Head | — | 44 | ~1896 |
| Robert Sullivan | Son | — | 15 | ~1925 |
| George Sullivan | Son | — | 22 | ~1918 |
| James Sullivan | Son | — | 9 | ~1931 |
| Francis Sullivan | Son | — | 8 | ~1932 |
| Mary Sullivan | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Hampden, Massachusetts
Son, age 1
Hampden, Massachusetts · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Ohio |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Hampden, Massachusetts
Son, age 12
Hampden, Massachusetts · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Hampden-County, Massachusetts
Son, age 22
Hampden-County, Massachusetts · implied b. ~1918 — 9 household members
| Surname | Sullivan |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Hampden |
| Occupation | Balancer |
| Industry | West. Electric |
| Class of Worker | PW |
| Hours Worked | 43 |
| Income (1939) | 450 |
| Highest Grade | H 3 |
| 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 George Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Sullivan (~0.92 confidence) and father James Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence) and father James Sullivan (~0.92 confidence) and father James Sullivan (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Sullivan
b. ~1892
Source mother
● Household
· direct · ~0.92
Father
James Sullivan
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1893
Source mother
● Household
· direct · ~0.92
Father
James Sullivan
b. ~1894
Source father
● Household
· direct · ~0.92
Father
James Sullivan
b. ~1896
Source father
● Household
· direct · ~0.92
This person
Anchor record
George Sullivan
Son · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Sibling
James Sullivan
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eillen Sullivan
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Sullivan
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Sullivan
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claire Sullivan
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Sullivan
Sibling · 1940 · age 15
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-t0627-01709-00102)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Walter Brown | 10 | Son | — | Massachusetts |
| 42 | Frances Brown | 15 | Daughter | — | Massachusetts |
| 43 | Helen E. Dooley | 52 | Sister | Operator | Massachusetts |
| 44 | Ella Allyndorth | 61 | Head | — | New York |
| 45 | Lena Chandler | 39 | Head | — | Massachusetts |
| 46 | Ruth Chandler | 16 | Daughter | — | Massachusetts |
| 47 | Lester Chandler | 14 | Son | — | Massachusetts |
| 48 | Earl Chandler | 13 | Son | — | Massachusetts |
| 49 | Vincent Marini | 55 | Head | Laborer | Italy |
| 50 | Carmela Marini | 53 | Wife | — | Italy |
| 51 | Albert Marini | 25 | Son | Radio Repairman | Massachusetts |
| 52 | Yolanda Marini | 23 | Daughter | — | Massachusetts |
| 53 | Elizabeth Davidson | 50 | Head | — | Massachusetts |
| 54 | Jerome Herbert Davidson | 42 | Sister | Hand Finisher | Massachusetts |
| 55 | Ralph Jackson | 40 | Head | Miller | Massachusetts |
| 56 | Aura Jackson | 35 | Wife | Machinist | Massachusetts |
| 57 | James J. Sullivan | 44 | Head | Supervisor | Connecticut |
| 58 | Mary E. Sullivan | 47 | Wife | — | Ohio |
| 59 | George Sullivan THIS PERSON | 22 | Son | Balancer | Massachusetts |
| 60 | Eillen Sullivan | 20 | Daughter | Mail Girl | Massachusetts |
| 61 | Claire Sullivan | 18 | Daughter | — | Massachusetts |
| 62 | Robert Sullivan | 15 | Son | — | Massachusetts |
| 63 | Elizabeth Sullivan | 12 | Daughter | — | Massachusetts |
| 64 | James Sullivan | 9 | Son | — | Massachusetts |
| 65 | Francis Sullivan | 8 | Son | — | Massachusetts |
| 66 | Joseph Mazzidi | 44 | Head | Attendant | Italy |
| 67 | Adya Mazzidi | 26 | Wife | — | Italy |
| 68 | Ruth Mazzidi | 3 | Daughter | — | Massachusetts |
| 69 | John Mazzidiani | 54 | Head | Machinist | Italy |
| 70 | Della Mazzidiani | 47 | Wife | — | Italy |
| 71 | Eva Mazzidiani | 21 | Daughter | Machinist | Massachusetts |
| 72 | Leonard Mazzidiani | 11 | Son | — | Massachusetts |
| 73 | William Masi | 27 | Head | Salesman | Massachusetts |
| 74 | Linda Masi | 29 | Wife | — | Massachusetts |
| 75 | Domingo Masi | 51 | Head | Repairman | Italy |
| 76 | Celia Masi | 51 | Wife | Sewer | Italy |
| 77 | Dante Masi | 21 | Son | — | Massachusetts |
| 78 | Alfred Masi | 16 | Son | — | Massachusetts |
| 79 | Frank Amarit | 28 | Head | Truck Driver | Massachusetts |
| 80 | Belinda Amarit | 23 | Wife | — | England |
Pedigree Summary
George + 6 siblings
Gen 1 · 5 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)