RS
Richard Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Richard Sullivan across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & Richard — first a son (b.~1918), then head of a 8-person household.
Age 22
b. ~1918
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Sullivan |
| Given Name | Richard W. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | C 3 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| Barbara Sullivan | Daughter | — | 11 | ~1929 |
| Monica Sullivan | Spouse | — | 44 | ~1896 |
| Roger Sullivan | Son | — | 10 | ~1930 |
| Carol Sullivan | Daughter | — | 18 | ~1922 |
| Richard Sullivan | Son | — | 22 | ~1918 |
| Richard Sullivan | Head | — | 49 | ~1891 |
| Jeanne Sullivan | Daughter | — | 14 | ~1926 |
| M Sullivan | Daughter | — | 19 | ~1921 |
Census Appearances
1920
Suffolk, Massachusetts
Son, age 2
Suffolk, Massachusetts · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Richard Francis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 12
Suffolk, Massachusetts · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Richard W Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 22
Suffolk-County, Massachusetts · implied b. ~1918 — 8 household members
| Surname | Sullivan |
| Given Name | Richard W. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Highest Grade | C 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 Richard 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 Richard Sullivan (~0.92 confidence) and father Richard Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence) and mother Monica Sullivan (~0.92 confidence) and mother Veronica Sullivan (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Sullivan
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Richard Sullivan
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Richard Sullivan
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Monica Sullivan
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Veronica Sullivan
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Richard Sullivan
Son · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Sibling
Carol Sullivan
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeanne Sullivan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
M Sullivan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Sullivan
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roger Sullivan
Sibling · 1940 · age 10
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 — 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-t0627-01680-00730)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William L. Newall | 33 | Servant | Teacher | Massachusetts |
| 2 | Abraham H. Goetsch | 54 | Head | Teacher | Connecticut |
| 3 | Agnes O. Goetsch | 55 | Wife | — | Massachusetts |
| 4 | Daniel Goetsch | 23 | Son | Seaman | Massachusetts |
| 5 | Margery Goetsch | 18 | Daughter | — | Massachusetts |
| 6 | David Goetsch | 15 | Son | — | Massachusetts |
| 7 | William S. Fraser | 61 | Head | Guard | Canada-English |
| 8 | Julia O. Fraser | 63 | Wife | — | Massachusetts |
| 9 | William V. Fraser | 32 | Son | Station Attendant | Massachusetts |
| 10 | Faith M. Fraser | 30 | Daughter | Stenographer | Massachusetts |
| 11 | Hope M. Fraser | 4 | Daughter | — | Massachusetts |
| 12 | Earl W. Springer | 49 | Cousin | Operator | Maine |
| 13 | William A. Hanlon | 43 | Head | Agent | Massachusetts |
| 14 | Frances W. Hanlon | 40 | Wife | — | New York |
| 15 | Mary Louise Hanlon | 10 | Daughter | — | Massachusetts |
| 16 | Nancy Hanlon | 8 | Daughter | — | Massachusetts |
| 17 | Joan Hanlon | 7 | Daughter | — | Massachusetts |
| 18 | William Hanlon | 6 | Son | — | Massachusetts |
| 19 | Sally Hanlon | 4 | Daughter | — | Massachusetts |
| 20 | Susan Hanlon | 1 | Daughter | — | Massachusetts |
| 21 | Richard W. Sullivan | 49 | Head | Telephone Engineer | Massachusetts |
| 22 | Monica M. Sullivan | 44 | Wife | — | Massachusetts |
| 23 | Richard W. Jr. Sullivan THIS PERSON | 22 | Son | — | Massachusetts |
| 24 | M. Louise Sullivan | 19 | Daughter | — | Massachusetts |
| 25 | Carol M. Sullivan | 18 | Daughter | — | Massachusetts |
| 26 | Jeanne A. Sullivan | 14 | Daughter | — | Massachusetts |
| 27 | Barbara M. Sullivan | 11 | Daughter | — | Massachusetts |
| 28 | Roger W. Sullivan | 10 | Son | — | Massachusetts |
| 29 | John J. Darcy | 54 | Head | Asst-Custodian | Massachusetts |
| 30 | Caroline F. Darcy | 52 | Wife | — | Massachusetts |
| 31 | Carolyn Darcy | 22 | Daughter | Teacher | Massachusetts |
| 32 | Anders M. Benander | 74 | Head | — | Sweden |
| 33 | Hulda A. Benander | 75 | Wife | — | Sweden |
| 34 | Agnes S. Benander | 41 | Daughter | Teacher | Massachusetts |
| 35 | Roland N. Cutter | 71 | Head | — | Massachusetts |
| 36 | M. Gertrude Cutter | 64 | Wife | — | Massachusetts |
| 37 | Charles J. Curtaz | 54 | Head | Accountant | Massachusetts |
| 38 | Mary A. Curtaz | 50 | Wife | — | Massachusetts |
| 39 | Ann L. Manning | 46 | Sister-in-law | Librarian | Massachusetts |
| 40 | Grace Manning | 52 | Sister-in-law | — | Massachusetts |
Pedigree Summary
Richard + 5 siblings
Gen 1 · 6 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)