JC
James Clarke — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this James Clarke across the 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1881), then head of a 8-person household.
Age 49
b. ~1881
Male
Head
Born: Massachusetts
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Clarke |
| Given Name | James H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 24 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Occupation | Janitor |
| Industry | City of Boston |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Janitor |
| Township / Ward | Boston City |
| Est. Birth Year | ~1881 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Rose Clarke | Daughter | — | 19 | ~1911 |
| William Clarke | Son | — | 17 | ~1913 |
| Anna Clarke | Spouse | — | 48 | ~1882 |
| John Clarke | Son | — | 21 | ~1909 |
| Edward Clarke | Son | — | 13 | ~1917 |
| Catherine Clarke | Daughter | — | 21 | ~1909 |
| James Clarke | Son | — | 24 | ~1906 |
| James Clarke | Head | — | 49 | ~1881 |
Census Appearances
1930
Suffolk, Massachusetts
Head, age 49
Suffolk, Massachusetts · implied b. ~1881 — 8 household members
| Surname | Clarke |
| Given Name | James H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 24 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Janitor |
| Industry | City of Boston |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Head, age 59
Suffolk-County, Massachusetts · implied b. ~1881 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Laborer |
| Industry | City of Boston |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 788 |
| Highest Grade | No 7 |
| 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 James Clarke across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Clarke
Head · 1930 · age 49 · b. ~1881 · 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 — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel942:1165)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bartholomew Coyne | 58 | Head | Laborer | Irish Free State |
| 2 | Annie E Coyne | 54 | Wife | — | Irish Free State |
| 3 | Josephine J Harvey | 24 | Daughter | Bill Packer | Massachusetts |
| 4 | Francis R Coyne | 32 | Son | Laborer | Massachusetts |
| 5 | Dorothy Harvey | 13 | Granddaughter | — | Massachusetts |
| 6 | Virginia Harvey | 12 | Granddaughter | — | Massachusetts |
| 7 | John M Coyne | 28 | Head | Salesman | Massachusetts |
| 8 | Catherine T Coyne | 25 | Wife | — | Massachusetts |
| 9 | John M Jr Coyne | 5 | Son | — | Massachusetts |
| 10 | Maurice Locke | 45 | Head | — | England |
| 11 | Emma M Locke | 54 | Daughter | Clerk | Massachusetts |
| 12 | Patrick E Savage | 63 | Head | Bookbinder | Massachusetts |
| 13 | Mary A Savage | 62 | Wife | — | Massachusetts |
| 14 | Gertrude L Savage | 32 | Son | Salesman | Massachusetts |
| 15 | John J Savage | 25 | Son | Technician | Massachusetts |
| 16 | Elizabeth M Savage | 23 | Daughter | Stenographer | Massachusetts |
| 17 | James H Clarke THIS PERSON | 49 | Head | Janitor | Massachusetts |
| 18 | Anna Clarke | 48 | Wife | — | Massachusetts |
| 19 | James H Jr Clarke | 24 | Son | Salesman | Massachusetts |
| 20 | John J Clarke | 21 | Son | Time Keeper | Massachusetts |
| 21 | Catherine E Clarke | 21 | Daughter | Stenographer | Massachusetts |
| 22 | Rose E Clarke | 19 | Daughter | Clerk | Massachusetts |
| 23 | William J Clarke | 17 | Son | Clerk | Massachusetts |
| 24 | Edward Clarke | 13 | Son | — | Massachusetts |
| 25 | Daniel S Sullivan | 66 | Head | Laborer | Irish Free State |
| 26 | Mary E Sullivan | 74 | Sister | — | Irish Free State |
| 27 | Nora Sullivan | 47 | Sister | Tailoress | Massachusetts |
| 28 | James Mc Gowan | 59 | Head | Teamster | Massachusetts |
| 29 | Annie Mc Gowan | 52 | Wife | — | Nova Scotia |
| 30 | Catherine Mc Gowan | 21 | Daughter | Apprentice | Massachusetts |
| 31 | Bernard Mc Gowan | 22 | Son | Salesman | Massachusetts |
| 32 | William J Toomey | 61 | Head | Superintendent | Massachusetts |
| 33 | Caroline Toomey | 58 | Wife | — | Massachusetts |
| 34 | Caroline M Toomey | 30 | Daughter | Clerk | Massachusetts |
| 35 | Albert Mac Donald | 44 | Head | Bookkeeper | Massachusetts |
| 36 | James E Mac Donald | 42 | Brother | Clerk | Massachusetts |
| 37 | Margaret A Mac Donald | 78 | Aunt | — | Massachusetts |
| 38 | Mary Z Mac Donald | 50 | Sister | Bookkeeper | Massachusetts |
| 39 | Harvey K Flagg | 50 | Head | Carpenter | Massachusetts |
| 40 | William H Flagg | 77 | Father | — | Massachusetts |
| 41 | Ella Flagg | 41 | Wife | — | Nova Scotia |
| 42 | Helen R Flagg | 21 | Daughter | Secretary | Massachusetts |
| 43 | Ruth C Flagg | 18 | Daughter | — | Massachusetts |
| 44 | Henry J Baker | 40 | Head | Draughtsman | Massachusetts |
| 45 | Edith J Baker | 39 | Wife | — | Irish Free State |
| 46 | Louis J Baker | 7 | Son | Clerk | Massachusetts |
| 47 | Henry J Jr Baker | 6 | Son | — | Massachusetts |
| 48 | J Stanley Baker | 4 | Son | — | Massachusetts |
| 49 | Warren H Baker | 1 | Son | — | Massachusetts |
| 50 | Annie L Doyle | 68 | Head | — | Massachusetts |
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)