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William Hopkins — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this William Hopkins across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1870), then head of a 3-person household.
Age 70
b. ~1870
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Hopkins |
| Given Name | William T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Lynn City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | 0 |
| Highest Grade | C 5 |
| 1935 Residence | Same Place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | 0 |
| Township / Ward | Lynn City |
| Est. Birth Year | ~1870 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Irene Hopkins | Daughter | — | 37 | ~1903 |
| William Hopkins | Head | — | 70 | ~1870 |
| Alice Hopkins | Spouse | — | 73 | ~1867 |
Census Appearances
1920
Essex, Massachusetts
Head, age 50
Essex, Massachusetts · implied b. ~1870 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hopkins |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Michigan |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Massachusetts |
| Occupation | Doctor |
| Industry | General Practice |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Essex, Massachusetts
Head, age 60
Essex, Massachusetts · implied b. ~1870 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hopkins |
| Given Name | William T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 28 |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Massachusetts |
| Occupation | Physician |
| Industry | General Practice |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 55.00 |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Essex-County, Massachusetts
Head, age 70
Essex-County, Massachusetts · implied b. ~1870 — 3 household members
| Surname | Hopkins |
| Given Name | William T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Lynn City |
| 1935 Residence (County) | Essex |
| Occupation | 0 |
| Highest Grade | C 5 |
| 1935 Residence | Same Place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 William Hopkins across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Hopkins
Head · 1940 · age 70 · b. ~1870 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01695-00974)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Gordon | 15 | Son | 0 | Massachusetts |
| 2 | Carroll Gordon | 9 | Daughter | 0 | Massachusetts |
| 3 | Maxine Leblanc | 33 | Maid | Maid | Canada-French |
| 4 | Mark Sherman | 71 | Head | Doctor | Indiana |
| 5 | Luta Sherman | 71 | Wife | 0 | Illinois |
| 6 | Sarah M. Roelines | 55 | Head | Proprietor | Massachusetts |
| 7 | Ruth A. Roelines | 50 | Sister | Secretary | Massachusetts |
| 8 | James Winslow | 42 | Head | Market Report | New York |
| 9 | Margaret Winslow | 70 | Mother | 0 | Vermont |
| 10 | Lionel Mcduff | 32 | Head | Owner | Massachusetts |
| 11 | Edith Mcduff | 34 | Wife | Bookkeeper | England |
| 12 | Ellsworth Thomas | 63 | Head | Auditor | Rhode Island |
| 13 | Adela M. Thomas | 57 | Wife | 0 | Massachusetts |
| 14 | William T. Hopkins THIS PERSON | 70 | Head | 0 | Michigan |
| 15 | Alice L. Hopkins | 73 | Wife | 0 | Massachusetts |
| 16 | Irene L. Hopkins | 37 | Daughter | Assistant Manager | Massachusetts |
| 17 | Mary A. Nally | 48 | Head | Milliner | Massachusetts |
| 18 | Thomas F. Nally | 55 | Brother | Salesman | Massachusetts |
| 19 | Katherine F. Nally | 46 | Sister | 0 | Massachusetts |
| 20 | Harold F. Rubin | 53 | Head | 0 | Massachusetts |
| 21 | Florence S. Rubin | 53 | Wife | 0 | Massachusetts |
| 22 | Barbara S. Rubin | 22 | Daughter | 0 | Maine |
| 23 | George H. Brown | 75 | Head | Stockroom Head | Massachusetts |
| 24 | Lillian Brown | 70 | Wife | 0 | Massachusetts |
| 25 | Joseph F. Harrigan | 45 | Head | Credit Manager | Massachusetts |
| 26 | Margaret Harrigan | 40 | Wife | 0 | Massachusetts |
| 27 | Mary E. V. Harrigan | 12 | Daughter | 0 | Massachusetts |
| 28 | Walter H. Taylor | 69 | Head | Manufacturer Agent | Michigan |
| 29 | Isabel Taylor | 60 | Wife | 0 | New Hampshire |
| 30 | George Chadwell | 67 | Lodger | General Clerk | Massachusetts |
| 31 | Elsie B. Coates | 44 | Lodger | Office Clerk | Massachusetts |
| 32 | Edgar Copeland | 64 | Head | Principal | Massachusetts |
| 33 | Augusta Copeland | 64 | Wife | 0 | Massachusetts |
| 34 | Beatrice Copeland | 33 | Daughter | 0 | Massachusetts |
| 35 | Warren Copeland | 24 | Son | — | Massachusetts |
| 36 | Abbott E. Thomas | 39 | Son-in-law | 0 | Massachusetts |
| 37 | Harold Weinstein | 51 | Head | Treasurer | England |
| 38 | Annie Weinstein | 53 | Wife | 0 | England |
| 39 | Solomon Weinstein | 91 | Father | 0 | Austria |
| 40 | Helen Dudley | 34 | Maid | Maid | Texas |
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)