JH
John Hopkins — 1930 US Census Record
Model Tree available1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this John Hopkins across the 1900, 1910, 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents Ella & Walter — first a son (b.~1900), then head of a 6-person household.
Age 30
b. ~1900
Male
Son
Born: Massachusetts
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Hopkins |
| Given Name | John W. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 23 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | police officer |
| Industry | City Dept. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Police Officer |
| Township / Ward | Malden City |
| Est. Birth Year | ~1900 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Walter Hopkins | Head | — | 58 | ~1872 |
| Alice Hopkins | Other | — | 28 | ~1902 |
| Caroline Hopkins | Other | — | 57 | ~1873 |
| John Hopkins | Other | — | 6 | ~1924 |
| Richard Hopkins | Other | — | 1 | ~1929 |
| John Hopkins | Son | — | 30 | ~1900 |
Census Appearances
1900
Middlesex, Massachusetts
Son, age
Middlesex, Massachusetts · implied b. ~1900 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hopkins |
| Given Name | John W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Birth Month | Jan |
| Birth Year | 1900 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1910
Middlesex, Massachusetts
Son, age 10
Middlesex, Massachusetts · implied b. ~1900 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hopkins |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Son, age 20
Middlesex, Massachusetts · implied b. ~1900 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hopkins |
| Given Name | John V. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Machinist |
| Industry | Machine Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 30
Middlesex, Massachusetts · implied b. ~1900 — 6 household members
| Surname | Hopkins |
| Given Name | John W. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 23 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | police officer |
| Industry | City Dept. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| 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 John Hopkins across 4 US Census years (1900, 1910, 1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage. Identified parents: mother Ella Hopkins (~0.92 confidence) and father Walter Hopkins (~0.92 confidence) and mother Caroline Hopkins (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Ella Hopkins
b. ~1865
Source mother
● Household
· direct · ~0.92
Father
Walter Hopkins
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Caroline Hopkins
b. ~1874
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hopkins
Son · 1930 · age 30 · b. ~1900 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel923:0442)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Olga Palmgren | 9 | daughter | — | Massachusetts |
| 2 | Hilda Miller | 69 | Head | — | Sweden |
| 3 | Fred Anderson | 35 | nephew | Painter | Denmark |
| 4 | John E. Johnson | 63 | Head | Rubber Factory | Sweden |
| 5 | Annette Johnson | 67 | wife-H | — | Sweden |
| 6 | Gerald Hoyle | 42 | Head | Mechanic | Massachusetts |
| 7 | Winifred Hoyle | 35 | wife-H | — | Maine |
| 8 | Geraldine Hoyle | 8 | daughter | — | Massachusetts |
| 9 | Grace Averill | 42 | boarder | Laster | Maine |
| 10 | Walter H. Hopkins | 58 | Head | Travelling Salesman | Massachusetts |
| 11 | Caroline Hopkins | 57 | wife-H | — | Massachusetts |
| 12 | John W. Hopkins THIS PERSON | 30 | son | Police Officer | Massachusetts |
| 13 | Alice M. Hopkins | 28 | daughter-in-law | — | Massachusetts |
| 14 | John Jr. Hopkins | 6 | grandson | — | Massachusetts |
| 15 | Richard H. Hopkins | 1 | grandson | — | Massachusetts |
| 16 | Warren Sr. Langzell | 71 | Head | Harnessmaker | Canada-English |
| 17 | Charlotte M. Langzell | 64 | wife-H | — | Massachusetts |
| 18 | Warren Jr. Langzell | 38 | Head | Contractor | Massachusetts |
| 19 | Ada C. Langzell | 32 | wife-H | — | Maine |
| 20 | Warren D. 3Rd Langzell | 7 | son | — | Massachusetts |
| 21 | Patricia Langzell | 3 | daughter | — | Massachusetts |
| 22 | Donald F. Langzell | 2 | son | — | Massachusetts |
| 23 | Bertha Viles | 15 | servant | Servant | Rhode Island |
| 24 | George Palmgren | 64 | Head | Meat Cutter | Sweden |
| 25 | Chester Palmgren | 25 | son | Cleaner | Massachusetts |
| 26 | Anthony Perry | 47 | Head | Fireman | Portugal |
| 27 | Mary Perry | 48 | wife-H | Candy Dipper | Portugal |
| 28 | Giggiano Perry | 17 | daughter | — | Massachusetts |
| 29 | Louise Perry | 10 | daughter | — | Massachusetts |
| 30 | Joseph Cagnina | 21 | son-in-law | Barber | Massachusetts |
| 31 | Mary Cagnina | 20 | daughter | — | Massachusetts |
| 32 | Fred J. Paraviso | 45 | boarder | Cook | Massachusetts |
| 33 | Anthony Borges | 38 | boarder | Fireman | Portugal |
| 34 | Isabel Crawford | 58 | Head | — | Scotland |
| 35 | Grace Macauley | 65 | sister | — | Scotland |
| 36 | Edwin L. Griffin | 51 | roomer | Cashier | Maine |
| 37 | Gordon Crawford | 34 | son | Clerk | Massachusetts |
| 38 | Jessie Crawford | 42 | daughter | Bookkeeper | Massachusetts |
| 39 | Emma Simpson | 65 | Head | — | Canada-English |
| 40 | Nellie M. Simpson | 39 | daughter | Dipper | Massachusetts |
| 41 | Grace Simpson | 35 | daughter | Packer | Massachusetts |
| 42 | Blanche Simpson | 28 | daughter | Milliner | Massachusetts |
| 43 | Herbert R. Eiseman | 34 | Head | Draftsman | Massachusetts |
| 44 | Mildred Eiseman | 33 | wife-H | — | Massachusetts |
| 45 | Norma Eiseman | 12 | daughter | — | Massachusetts |
| 46 | Herbert Eiseman | 9 | son | — | Massachusetts |
| 47 | Carl Eiseman | 7 | son | — | Massachusetts |
| 48 | Misinformed | None | — | Misinformed | misinformed |
| 49 | Misinformed | None | — | Misinformed | — |
| 50 | Misinformed | None | — | Misinformed | — |
Pedigree Summary
John
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)