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Richard Long — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Richard Long across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 8-person household.
Age 13
b. ~1927
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Long |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Watertown Town |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | G 7 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Watertown Town |
| Est. Birth Year | ~1927 |
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 |
|---|---|---|---|---|
| Donald Long | Son | — | 6 | ~1934 |
| Patricia Long | Daughter | — | 9 | ~1931 |
| Edward Long | Spouse | — | 37 | ~1903 |
| John Long | Son | — | 16 | ~1924 |
| Richard Long | Son | — | 13 | ~1927 |
| Jean Long | Daughter | — | 7 | ~1933 |
| Doris Long | Daughter | — | 11 | ~1929 |
| John Long | Head | — | 43 | ~1897 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 3
Middlesex, Massachusetts · implied b. ~1927 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Maine |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 13
Middlesex-County, Massachusetts · implied b. ~1927 — 8 household members
| Surname | Long |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Watertown Town |
| 1935 Residence (County) | Middlesex |
| Highest Grade | G 7 |
| 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 Long across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Richard Long
Son · 1940 · age 13 · b. ~1927 · Massachusetts
★ You are viewing this record
Sibling
Jean Long
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Long
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Long
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Long
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Long
Sibling · 1940 · age 16
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-t0627-01620-00498)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard J. Mcbride | 41 | Son | Mail Carrier | Massachusetts |
| 2 | Janet Mcbride | 9 | Daughter | — | Massachusetts |
| 3 | Phyllis Mcbride | 7 | Daughter | — | Massachusetts |
| 4 | Mary J. Mcbride | 78 | Mother | — | Massachusetts |
| 5 | Timothy J. Buckley | 70 | Head | — | Eire |
| 6 | Julia Buckley | 68 | Wife | — | Eire |
| 7 | John J. Buckley | 35 | Son | Mail Carrier | Massachusetts |
| 8 | Joseph F. Buckley | 28 | Son | Garage Worker | Massachusetts |
| 9 | Francis (Ab) Buckley | 22 | Son | Gas Station Attndt. | Massachusetts |
| 10 | Joseph O'Gorman | 43 | Head | Superintendent | Massachusetts |
| 11 | Mary O'Gorman | 41 | Wife | — | Massachusetts |
| 12 | Joseph Jr. O'Gorman | 18 | Son | — | Massachusetts |
| 13 | Virginia O'Gorman | 16 | Daughter | — | Massachusetts |
| 14 | Mary V. O'Gorman | 12 | Daughter | — | Massachusetts |
| 15 | John O'Gorman | 3 | Son | — | Massachusetts |
| 16 | John P. Long | 43 | Head | Policeman | Maine |
| 17 | Edward Long | 37 | Wife | — | Maine |
| 18 | John P. Jr. Long | 16 | Son | — | Maine |
| 19 | Richard Long THIS PERSON | 13 | Son | — | Massachusetts |
| 20 | Doris Long | 11 | Daughter | — | Massachusetts |
| 21 | Patricia Ann Long | 9 | Daughter | — | Massachusetts |
| 22 | Jean Long | 7 | Daughter | — | Massachusetts |
| 23 | Donald Long | 6 | Son | — | Massachusetts |
| 24 | Tanose Kouyoumjian | 48 | Head | Retail Oilman | Armenia |
| 25 | Paris Kouyoumjian | 35 | Wife | — | Armenia |
| 26 | Lucy Kouyoumjian | 19 | Daughter | — | Boydston, Mass. |
| 27 | Harry Kouyoumjian | 16 | Son | — | Rhode Island |
| 28 | Daniel Brown | 40 | Head | Sales Manager | Massachusetts |
| 29 | Anne Brown | 40 | Wife | — | Massachusetts |
| 30 | Anne E. Brown | 12 | Daughter | — | Massachusetts |
| 31 | Frederick Brown | 9 | Son | — | Massachusetts |
| 32 | — | None | — | — | — |
| 33 | — | None | — | — | — |
| 34 | John R. Chapman | 57 | Head | Stationary Eng. | England |
| 35 | Ellen M. Chapman | 55 | Wife | — | Massachusetts |
| 36 | Claire Foster | 32 | Housekeeper | — | Maryland |
| 37 | George Hooper | 66 | Head | — | English Canada |
| 38 | Hughana Hooper | 67 | Wife | — | English Canada |
| 39 | Beatrice Silver | 39 | Niece | Book Keeper | English Canada |
| 40 | Ernest Rogers | 55 | Lodger | Janitor | England |
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)