ES
Edward Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Edward Sullivan across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Mary & William — first a son (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Sullivan |
| Given Name | Edward |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | City of Cambridge |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | salesman |
| Industry | soap mfg co |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 1250 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Salesman |
| Township / Ward | City Of Cambridge |
| Est. Birth Year | ~1910 |
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 Edward | Age | Birth yr |
|---|---|---|---|---|
| Mary Sullivan | Head | — | 64 | ~1876 |
| Edward Sullivan | Son | — | 30 | ~1910 |
| Eugene Sullivan | Son | — | 35 | ~1905 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Edward |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 22
Middlesex, Massachusetts · implied b. ~1908 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Edward |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Salesman |
| Industry | Gas Station |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 30
Middlesex-County, Massachusetts · implied b. ~1910 — 3 household members
| Surname | Sullivan |
| Given Name | Edward |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | City of Cambridge |
| 1935 Residence (County) | Middlesex |
| Occupation | salesman |
| Industry | soap mfg co |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 1250 |
| Highest Grade | No 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 Edward 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 William Sullivan (~0.92 confidence) and mother Nellie Sullivan (~0.92 confidence) and father Cornelius Sullivan (~0.92 confidence) and mother Catherine Sullivan (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Sullivan
b. ~1876
Source mother
● Household
· direct · ~0.92
Father
William Sullivan
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Nellie Sullivan
b. ~1878
Source mother
● Household
· direct · ~0.92
Father
Cornelius Sullivan
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Catherine Sullivan
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Edward Sullivan
Son · 1940 · age 30 · b. ~1910 · Massachusetts
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Sibling
Eugene Sullivan
Sibling · 1940 · age 35
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 — 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-t0627-01684-00206)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Catherine Keefe | 67 | Head | Housework | Eire |
| 2 | Nora Keefe | 32 | Daughter | Office Worker | Massachusetts |
| 3 | Julia Keefe | 30 | Daughter | Stenographer | Massachusetts |
| 4 | Anne G. Gammon | 60 | Head | — | Massachusetts |
| 5 | Edwin G. Gammon | 32 | Son | Office Clerk | Massachusetts |
| 6 | Francis J. Gammon | 29 | Son | Navy Yard | Massachusetts |
| 7 | Evelyn Gammon | 28 | Daughter | Private Secretary | Massachusetts |
| 8 | Helen M. Gammon | 25 | Daughter | Student | Massachusetts |
| 9 | Anna G. Gammon | 22 | Daughter | New Worker | Massachusetts |
| 10 | Eleanor Gammon | 20 | Daughter | New Worker | Massachusetts |
| 11 | Mary Gammon | 18 | Daughter | New Worker | Massachusetts |
| 12 | Owen Mcelearney | 40 | Head | Mastery Man | Massachusetts |
| 13 | Josephine Mcelearney | 38 | Wife | — | Massachusetts |
| 14 | Robert Mcelearney | 17 | Son | — | Massachusetts |
| 15 | Catherine Mcelearney | 16 | Daughter | — | Massachusetts |
| 16 | Donald Mcelearney | 11 | Son | — | Massachusetts |
| 17 | Mary Mcelearney | 8 | Daughter | — | Massachusetts |
| 18 | Richard Mcelearney | 5 | Son | — | Massachusetts |
| 19 | Ralph Mcelearney | 5 | Son | — | Massachusetts |
| 20 | Alice Mcelearney | 2 | Daughter | — | Massachusetts |
| 21 | Bridget Galvin | 74 | Head | — | Eire |
| 22 | Mary Galvin | 42 | Daughter | Shoe Dresser | Massachusetts |
| 23 | Helen Galvin | 36 | Daughter | Operator | Massachusetts |
| 24 | John Buggins | 22 | Nephew | New Worker | New York |
| 25 | William F. Mullane | 42 | Head | Insurance Salesman | Massachusetts |
| 26 | Alice D. Mullane | 40 | Wife | Stenographer | Massachusetts |
| 27 | Barbara D. Mullane | 7 | Daughter | — | Massachusetts |
| 28 | Joseph Perry | 58 | Head | Packing | Portugal |
| 29 | Mariana Perry | 51 | Wife | — | Portugal |
| 30 | Laura Perry | 25 | Daughter | Sales Lady | Massachusetts |
| 31 | Dora Perry | 23 | Daughter | New Worker | Massachusetts |
| 32 | Marie Pacheco | 34 | Lodger | Laborer | Portugal |
| 33 | Frank Perry | 36 | Head | Finisher | Connecticut |
| 34 | Elizabeth H. Perry | 29 | Wife | Sales Girl | Massachusetts |
| 35 | Mary Sullivan | 64 | Head | Maid | Eire |
| 36 | Eugene Sullivan | 35 | Son | Laborer | Massachusetts |
| 37 | Edward Sullivan THIS PERSON | 30 | Son | Salesman | Massachusetts |
| 38 | Patrick Collins | 70 | Head | Janitor | Eire |
| 39 | Mary A. Collins | 69 | Wife | — | Eire |
| 40 | Edward Kelly | 40 | Son-in-law | Govt Construction | Newfoundland |
Pedigree Summary
Edward + 1 sibling
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)