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John Simpson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this John Simpson across the 1920, 1930 and 1940 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents Ronald & Agnes — first a son (b.~1920), then head of a 7-person household.
Age 10
b. ~1920
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Simpson |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Melrose City |
| Est. Birth Year | ~1920 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Alice Simpson | Daughter | — | 8 | ~1922 |
| Eleanor Simpson | Daughter | — | 11 | ~1919 |
| Ronald Simpson | Head | — | 42 | ~1888 |
| B Simpson | Son | — | 6 | ~1924 |
| Richard Simpson | Son | — | 4 | ~1926 |
| John Simpson | Son | — | 10 | ~1920 |
| Agnes Simpson | Spouse | — | 41 | ~1889 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age
Middlesex, Massachusetts · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 10
Middlesex, Massachusetts · implied b. ~1920 — 7 household members
| Surname | Simpson |
| Given Name | John H. |
| 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/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Other, age 20
Middlesex-County, Massachusetts · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sampson |
| Given Name | John W. |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Occupation | Printer |
| Industry | Publisher |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 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 John Simpson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ronald Simpson (~0.92 confidence) and mother Agnes Simpson (~0.92 confidence) and father Alonzo Simpson (~0.92 confidence) and mother Alice Simpson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ronald Simpson
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Agnes Simpson
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
Alonzo Simpson
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Alice Simpson
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Simpson
Son · 1930 · age 10 · b. ~1920 · Massachusetts
★ You are viewing this record
Sibling
Alice Simpson
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Simpson
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
B Simpson
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Simpson
Sibling · 1930 · age 11
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:massachusettscensus00reel925:0618)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mabel N. Sowle | 61 | Maid | Housework | New Hampshire |
| 2 | Arthur A. Stearns | 45 | Head | Machinist | Vermont |
| 3 | Pauline M. Stearns | 56 | Wife | — | Vermont |
| 4 | Waldo M. Powers | 24 | Step-son | — | New Hampshire |
| 5 | Helen Welch | 74 | Sister-in-law | — | Vermont |
| 6 | Henry M. Dean | 60 | Head | Cashier | Massachusetts |
| 7 | Bertha R. Dean | 57 | Wife | — | Massachusetts |
| 8 | Hazel Dean | 27 | Daughter | R. Nurse | Massachusetts |
| 9 | Ellis H. Dean | 26 | Son | Adjustor | Massachusetts |
| 10 | Selina B. Dilloway | 79 | Mother-in-law | — | Massachusetts |
| 11 | Charles C. Everett | 63 | Head | Builder | Maine |
| 12 | Annette V. Everett | 62 | Wife | — | Massachusetts |
| 13 | Miriam V. Everett | 37 | Daughter | — | Massachusetts |
| 14 | George L. Stingel | 39 | Head | Solicitor | Massachusetts |
| 15 | Hazel B. Stingel | 36 | Wife | — | Massachusetts |
| 16 | Martha E. Stingel | 7 | Daughter | — | Massachusetts |
| 17 | Kilby P. Sargent | 51 | Head | Druggist | Maine |
| 18 | Edith M. Sargent | 50 | Wife | — | Canada-Eng |
| 19 | E. Marguerite Sargent | 23 | Daughter | Kindergartner | Massachusetts |
| 20 | Elizabeth Sargent | 20 | Daughter | — | Massachusetts |
| 21 | Ronald H. Simpson | 42 | Head | Salesman | Massachusetts |
| 22 | Agnes W. Simpson | 41 | Wife | — | Massachusetts |
| 23 | Eleanor E. Simpson | 11 | Daughter | — | Massachusetts |
| 24 | John H. Simpson THIS PERSON | 10 | Son | — | Massachusetts |
| 25 | Alice D. Simpson | 8 | Daughter | — | Massachusetts |
| 26 | B. David Simpson | 6 | Son | — | Massachusetts |
| 27 | Richard A. Simpson | 4 | Son | — | Massachusetts |
| 28 | Leon W. Weir | 40 | Head | Official | Maine |
| 29 | Florence P. Weir | 38 | Wife | — | Maine |
| 30 | William F. Weir | 19 | Son | — | Maine |
| 31 | Leon Jr. Weir | 17 | Son | — | Maine |
| 32 | Elizabeth E. Weir | 16 | Daughter | — | Maine |
| 33 | Herbert A. Weir | 12 | Son | — | Maine |
| 34 | Louis Goldschmidt | 67 | Head | — | France |
| 35 | Fanny Goldschmidt | 58 | Wife | — | New Hampshire |
| 36 | Katharine Devlin | 58 | Sister-in-law | Teacher | New Hampshire |
| 37 | Helen Devlin | 24 | Niece | Clerk | New Hampshire |
| 38 | Arthur W. Cooling | 52 | Head | Asst. Secretary | Massachusetts |
| 39 | Ethel G. Cooling | 46 | Wife | — | Massachusetts |
| 40 | Ruth G. Cooling | 14 | Daughter | — | Massachusetts |
| 41 | Stephen Grant | 76 | Father-in-law | — | Canada-Eng |
| 42 | Stella P. Demone | 34 | Maid | Housework | Canada-Eng |
| 43 | Liston D. Hutchins | 36 | Head | Agent | Massachusetts |
| 44 | Olivia G. Hutchins | 34 | Wife | — | Massachusetts |
| 45 | Janet Hutchins | 1 | Daughter | — | Massachusetts |
| 46 | Duncan A. Mcrae | 27 | Head | Salesman | Massachusetts |
| 47 | Mary A. Mcrae | 27 | Wife | — | Rhode Island |
| 48 | George L. Mcrae | 5 | Son | — | Massachusetts |
| 49 | Malcolm Mcrae | 4 | Son | — | Massachusetts |
| 50 | Phyllis Mcrae | 2 | Daughter | — | Massachusetts |
Pedigree Summary
John + 4 siblings
Gen 1 · 4 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)