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Harold Adams — 1930 US Census Record
Model Tree available1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Harold Adams across the 1920, 1930 and 1940 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents C & E — first a son (b.~1915), then head of a 7-person household.
Age 15
b. ~1915
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Adams |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Medford City |
| Est. Birth Year | ~1915 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Minnie Bland | Other | — | 58 | ~1872 |
| Mabel Adams | Other | — | 36 | ~1894 |
| C Adams | Head | — | 38 | ~1892 |
| James Bland | Other | — | 52 | ~1878 |
| Phyllis Adams | Daughter | — | 13 | ~1917 |
| Harold Adams | Son | — | 15 | ~1915 |
| Barbara Adams | Daughter | — | 16 | ~1914 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 5
Middlesex, Massachusetts · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Harold S. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 15
Middlesex, Massachusetts · implied b. ~1915 — 7 household members
| Surname | Adams |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 25
Middlesex-County, Massachusetts · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Howard S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Chelmsford Town |
| 1935 Residence (County) | Middlesex |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 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 Harold Adams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father C Adams (~0.92 confidence) and father E Adams (~0.92 confidence) and mother Mabel Adams (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
C Adams
b. ~1892
Source father
● Household
· direct · ~0.92
Father
E Adams
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Mabel Adams
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Adams
Son · 1930 · age 15 · b. ~1915 · Massachusetts
★ You are viewing this record
Sibling
Phyllis Adams
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Adams
Sibling · 1930 · 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
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:massachusettscensus00reel924:1009)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Barbara Saunders | 2 | Daughter | None | Massachusetts |
| 2 | Jeanne Saunders | 1 | Daughter | None | Massachusetts |
| 3 | Lewis Maffei | 35 | Head | Musician | Italy |
| 4 | B. Annette Maffei | 34 | Wife-H | None | Massachusetts |
| 5 | Francis Maffei | 6 | Son | None | Massachusetts |
| 6 | Gloria Maffei | 4 | Daughter | None | Massachusetts |
| 7 | Blanche Maffei | 2 | Daughter | None | Massachusetts |
| 8 | Lionel Cooke | 29 | Head | Professional | Massachusetts |
| 9 | Helen G. Cooke | 28 | Wife-H | None | Massachusetts |
| 10 | Herbert Cooke | 3 | Son | None | Massachusetts |
| 11 | Stanley B. Dolly | 39 | Head | Credit Manager | Massachusetts |
| 12 | Hazel C. Dolly | 38 | Wife-H | None | Missouri |
| 13 | Phyllis Dolly | 6 | Daughter | None | Massachusetts |
| 14 | Samuel T. Carakay | 41 | Head | Captain | Northern Ireland |
| 15 | Susan Carakay | 33 | Wife-H | Stenographer | Scotland |
| 16 | Susan T. Carr | 60 | Mother-in-law | None | Scotland |
| 17 | Angus G. Carr | 22 | Brother-in-law | Laborer | Scotland |
| 18 | John B. Madore | 42 | Head | Lawyer | Maine |
| 19 | Elizabeth A. Madore | 27 | Wife-H | None | New Hampshire |
| 20 | Beatrice Bakner | 36 | Head-H | None | Massachusetts |
| 21 | George Bakner | 12 | Son | None | Massachusetts |
| 22 | C. Everett Adams | 38 | Head | Office Manager | Massachusetts |
| 23 | Mabel F. Adams | 36 | Wife-H | Stenographer | Massachusetts |
| 24 | Barbara Adams | 16 | Daughter | None | Massachusetts |
| 25 | Harold Adams THIS PERSON | 15 | Son | None | Massachusetts |
| 26 | Phyllis Adams | 13 | Daughter | None | Massachusetts |
| 27 | James Bland | 52 | Lodger | Messenger | Massachusetts |
| 28 | Minnie Bland | 58 | Lodger | None | Massachusetts |
| 29 | William H. Parker | 63 | Head | Clerk | Massachusetts |
| 30 | Edith M. Parker | 64 | Wife-H | None | Maine |
| 31 | Daniel A. O'Connell | 51 | Head | Inspector | Massachusetts |
| 32 | Mary G. O'Connell | 53 | Wife-H | None | Massachusetts |
| 33 | Margaret O'Connell | 24 | Daughter | Book Keeper | Massachusetts |
| 34 | John T. O'Connell | 22 | Son | None | Massachusetts |
| 35 | Mary O'Connell | 21 | Daughter | Book-Keeper | Massachusetts |
| 36 | Daniel A. O'Connell | 17 | Son | None | Massachusetts |
| 37 | Thomas A. O'Connell | 15 | Son | None | Massachusetts |
| 38 | Robert C. Hill | 25 | Head | Tester | New York |
| 39 | Alice Mae Hill | 25 | Wife-H | None | Massachusetts |
| 40 | Victor E. Pihl | 64 | Head | Mechanic | Massachusetts |
| 41 | Mabel S. Pihl | 56 | Wife-H | None | Massachusetts |
| 42 | Norman F. Simpson | 30 | Head | Manager | Massachusetts |
| 43 | Catherine Simpson | 28 | Wife-H | None | Canada English |
| 44 | Norma J. Simpson | 0 | Daughter | None | Massachusetts |
| 45 | Elizabeth Cruickshank | 59 | Aunt | Proof-Reader | Scotland |
| 46 | Jessie Cruickshank | 50 | cousin | Salesman | Massachusetts |
| 47 | Charles Twombley | 57 | Head | Conductor | New Hampshire |
| 48 | Alice D. Twombley | 51 | Wife-H | None | Massachusetts |
| 49 | Leonard S. Twombley | 19 | Son | None | Massachusetts |
| 50 | John Calabro | 39 | Head | Dentist | Italy |
Pedigree Summary
Harold + 2 siblings
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)