RS
Richard Sullivan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Richard Sullivan across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 9-person household.
Age 11
b. ~1929
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Sullivan |
| Given Name | Richard E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Everett city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | 5 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Everett City |
| Est. Birth Year | ~1929 |
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 Richard | Age | Birth yr |
|---|---|---|---|---|
| Fredrick Sullivan | Head | — | 39 | ~1901 |
| Kenneth Sullivan | Son | — | 4 | ~1936 |
| Shirley Sullivan | Daughter | — | 9 | ~1931 |
| Fredricka Sullivan | Son | — | 13 | ~1927 |
| Olga Sullivan | Spouse | — | 40 | ~1900 |
| Richard Sullivan | Son | — | 11 | ~1929 |
| Dorothy Sullivan | Daughter | — | 16 | ~1924 |
| Marian Sullivan | Daughter | — | 8 | ~1932 |
| Betty Sullivan | Daughter | — | 3 | ~1937 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 1
Middlesex, Massachusetts · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Richard E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Canada-English |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 11
Middlesex-County, Massachusetts · implied b. ~1929 — 9 household members
| Surname | Sullivan |
| Given Name | Richard E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Everett city |
| 1935 Residence (County) | Middlesex |
| Highest Grade | 5 |
| 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 Richard Sullivan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Richard Sullivan
Son · 1940 · age 11 · b. ~1929 · Massachusetts
★ You are viewing this record
Sibling
Marian Sullivan
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Sullivan
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fredricka Sullivan
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Sullivan
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Sullivan
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Sullivan
Sibling · 1940 · age 4
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-t0627-01605-00371)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Patrick J. Gear | 42 | Head | Carpenter | Canada |
| 2 | Martha A. Gear | 34 | Wife | — | Canada |
| 3 | Marie P. Gear | 13 | Daughter | — | Massachusetts |
| 4 | Jerome Gear | 11 | Son | — | Massachusetts |
| 5 | Eleanor M. Gear | 10 | Daughter | — | Massachusetts |
| 6 | Patrick J. Gear | 8 | Son | — | Massachusetts |
| 7 | Roland J. Gear | 6 | Son | — | Massachusetts |
| 8 | William R. Gear | 4 | Son | — | Massachusetts |
| 9 | Michael C. Gear | 3 | Son | — | Massachusetts |
| 10 | Virginia R. Gear | 1 | Daughter | — | Massachusetts |
| 11 | Edward J. Gear | 0 | Son | — | Massachusetts |
| 12 | Edward J. Gear | 38 | Head | Carpenter | Canada |
| 13 | Margaret M. Gear | 33 | Wife | — | Canada |
| 14 | Mary M. Gear | 10 | Daughter | — | Massachusetts |
| 15 | Edna M. Gear | 9 | Daughter | — | Massachusetts |
| 16 | Helen J. Gear | 8 | Daughter | — | Massachusetts |
| 17 | Edward J. Gear | 4 | Son | — | Massachusetts |
| 18 | Mildred T. Gear | 2 | Daughter | — | Massachusetts |
| 19 | Barbara Gear | 1 | Daughter | — | Massachusetts |
| 20 | Katherine T. Bond | 72 | Head | — | Ireland |
| 21 | Mary C. Bond | 38 | Daughter | Investigator | Massachusetts |
| 22 | Edward W. Bond | 34 | Son | Field Engineer | Massachusetts |
| 23 | Marion Reardon | 17 | Friend | — | Massachusetts |
| 24 | Fredrick A. Sullivan | 39 | Head | Automobile Mechanic | Canada |
| 25 | Olga E. Sullivan | 40 | Wife | — | Massachusetts |
| 26 | Dorothy J. Sullivan | 16 | Daughter | — | Massachusetts |
| 27 | Fredricka Sullivan | 13 | Son | — | Massachusetts |
| 28 | Richard E. Sullivan THIS PERSON | 11 | Son | — | Massachusetts |
| 29 | Shirley E. Sullivan | 9 | Daughter | — | Massachusetts |
| 30 | Marian E. Sullivan | 8 | Daughter | — | Massachusetts |
| 31 | Kenneth F. Sullivan | 4 | Son | — | Massachusetts |
| 32 | Betty A. Sullivan | 3 | Daughter | — | Massachusetts |
| 33 | Joseph James Kelley | 59 | Head | Machinist | Massachusetts |
| 34 | Agnes J. Kelley | 57 | Wife | — | Massachusetts |
| 35 | Joseph W. Kelley | 14 | Son | — | Massachusetts |
| 36 | Enrico S. Piano | 65 | Head | Shoemaker | Italy |
| 37 | Frances Piano | 65 | Wife | — | Italy |
| 38 | Phyllis Piano | 22 | Daughter | Laborer | Massachusetts |
| 39 | George G. Mackay | 53 | Head | Gardner | England |
| 40 | Nellie B. Mackay | 49 | Wife | — | Canada |
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)