JH
John Hammond — 1930 US Census Record
Model Tree available1930 United States Federal Census · Essex, Massachusetts
Our Model Tree links this John Hammond across the 1910, 1920 and 1930 US Censuses in Essex, Massachusetts (XGBoost, ~Confirmed), with identified parents David & Clara — first a head (b.~1890), then head of a 5-person household.
Age 40
b. ~1890
Male
Head
Born: Massachusetts
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, Massachusetts |
| Surname | Hammond |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 25 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Connecticut |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Architectural |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 12 |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Stenographer |
| Township / Ward | Marblehead Town |
| Est. Birth Year | ~1890 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Hammond | Head | — | 40 | ~1890 |
| Edgar Tufts | Other | — | 64 | ~1866 |
| M Gilman | Other | — | 10 | ~1920 |
| Frederick Hammond | Son | — | 14 | ~1916 |
| Mildred Hammond | Spouse | — | 41 | ~1889 |
Census Appearances
1910
Essex, Massachusetts
Son, age 20
Essex, Massachusetts · implied b. ~1890 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hammond |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Connecticut |
| Occupation | Carpenter |
| Industry | House |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Essex, Massachusetts
Head, age 29
Essex, Massachusetts · implied b. ~1891 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hammond |
| Given Name | John N |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Connecticut |
| Occupation | Carpenter |
| Industry | House |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Head, age 40
Essex, Massachusetts · implied b. ~1890 — 5 household members
| Surname | Hammond |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 25 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Connecticut |
| Occupation | Stenographer |
| Industry | Architectural |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 12 |
| 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 Hammond across 3 US Census years (1910, 1920 and 1930) in Essex, Massachusetts, using XGBoost record linkage. Identified parents: father David Hammond (~0.92 confidence) and mother Clara Hammond (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
David Hammond
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Clara Hammond
b. ~1865
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hammond
Head · 1930 · age 40 · b. ~1890 · 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 — Essex, Massachusetts
Open full size
1930 US Federal Census — Essex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel901:0154)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arthur H. Cassidy | 53 | Head | Gardener | Massachusetts |
| 2 | Maria W. Rogers | 49 | Head | — | Massachusetts |
| 3 | Horace Cloos | 68 | Head | — | Massachusetts |
| 4 | Roland M. Roberts | 29 | Head | Proprietor | Massachusetts |
| 5 | Carrie J. Roberts | 31 | Wife | Plumber | Massachusetts |
| 6 | Bertha A. Ramsdell | 39 | Head | — | Massachusetts |
| 7 | John W. Hammond THIS PERSON | 40 | Head | Stenographer | Massachusetts |
| 8 | Mildred Hammond | 41 | Wife | Proprietor | Massachusetts |
| 9 | Frederick E. Hammond | 14 | Son | — | Massachusetts |
| 10 | M. Fox Gilman | 10 | Lodger | — | Massachusetts |
| 11 | Edgar M. Tufts | 64 | Lodger | — | New Hampshire |
| 12 | Fred E. Hammond | 69 | Head | — | Massachusetts |
| 13 | Clara A. Hammond | 64 | Wife | Carpenter | Connecticut |
| 14 | Henry P. Hammond | 40 | Son | — | Massachusetts |
| 15 | James A. Curley | 65 | Head | Carpenter | Massachusetts |
| 16 | Sarah Curley | 50 | Sister | Stitcher | Massachusetts |
| 17 | Lynde W. Chapman | 54 | Head | — | Massachusetts |
| 18 | Howard W. Bartlett | 38 | Head | Bookkeeping | Massachusetts |
| 19 | Elsie K. Bartlett | 36 | Wife | Installer | Massachusetts |
| 20 | Robert K. Bartlett | 5 | Son | — | Massachusetts |
| 21 | Mary E. Nichols | 54 | Head | — | Massachusetts |
| 22 | William B. Ball | 43 | Head | Bookkeeper | Massachusetts |
| 23 | Edith C. Ball | 26 | Wife | Optometrist | Massachusetts |
| 24 | William B. Ball | 0 | Son | — | Massachusetts |
| 25 | William F. Lincoln | 59 | Head | — | Maine |
| 26 | Edith O. Lincoln | 58 | Wife | Foreman | Massachusetts |
| 27 | Maude E. Lincoln | 35 | Daughter | — | Massachusetts |
| 28 | Sarah R. Puchard | 80 | Head | — | Massachusetts |
| 29 | Rose E. Bradbury | 43 | Head | — | Maine |
| 30 | Walter H. Sherman | 67 | Head | — | Illinois |
| 31 | Elizabeth C. Sherman | 63 | Wife | Manager | New York |
| 32 | Roy F. Clough | 38 | Head | Superintendent | Massachusetts |
| 33 | Evelyn E. Clough | 31 | Wife | Proprietor | Massachusetts |
| 34 | Barbara F. Clough | 14 | Daughter | Superintendent | Massachusetts |
| 35 | H. Frank Homan | 72 | Head | — | Massachusetts |
| 36 | Anna P. Homan | 72 | Wife | — | Massachusetts |
| 37 | Edmund L. Homan | 39 | Son | Cutter | Massachusetts |
| 38 | J. Frank Woodfin | 68 | Head | — | Massachusetts |
| 39 | Mary E. Woodfin | 64 | Wife | Janitor | Massachusetts |
| 40 | Philip T. Woodfin | 38 | Son | Proprietor | Massachusetts |
| 41 | Jane R. Wade | 43 | Daughter | — | Massachusetts |
| 42 | Lewis C. Wade | 22 | Grandson | Proprietor | Massachusetts |
| 43 | Robert Wade | 18 | Grandson | — | Massachusetts |
| 44 | Philip Wade | 16 | Grandson | Molder | Massachusetts |
| 45 | Janet Mason | 63 | Head | Helper | Scotland |
| 46 | Margaret D. Mason | 37 | Daughter | — | Massachusetts |
| 47 | Arthur H. Lindsay | 51 | Head | Proprietor | Massachusetts |
| 48 | Carrie B. Lindsay | 65 | Wife | Clerk | Massachusetts |
| 49 | William H. Allear | 62 | Head | Printer | Massachusetts |
| 50 | Emma Allear | 70 | Wife | — | Massachusetts |
Pedigree Summary
John
Gen 1 · 2 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)