JP
James Porter — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this James Porter across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Mary & Mary — first a son (b.~1913), then head of a 7-person household.
Age 27
b. ~1913
Male
Son
Born: New Hampshire
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Porter |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Lynn City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Production Clerk |
| Industry | Electrical Equip Mfg |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1750 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Production Clerk |
| Township / Ward | Lynn City |
| Est. Birth Year | ~1913 |
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 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Helen Porter | Daughter | — | 24 | ~1916 |
| Agnes Porter | Daughter | — | 11 | ~1929 |
| Marion Porter | Daughter | — | 29 | ~1911 |
| Margaret Porter | Daughter | — | 22 | ~1918 |
| Mary Porter | Head | — | 54 | ~1886 |
| Eva Robinson | Other | — | 53 | ~1887 |
| James Porter | Son | — | 27 | ~1913 |
Census Appearances
1920
Essex, Massachusetts
Son, age 8
Essex, Massachusetts · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Porter |
| Given Name | James B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Ireland |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Essex, Massachusetts
Son, age 18
Essex, Massachusetts · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Porter |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Meter Man |
| Industry | Public Utility |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Essex-County, Massachusetts
Son, age 27
Essex-County, Massachusetts · implied b. ~1913 — 7 household members
| Surname | Porter |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Lynn City |
| 1935 Residence (County) | Essex |
| Occupation | Production Clerk |
| Industry | Electrical Equip Mfg |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1750 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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 Porter across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Porter (~0.92 confidence) and mother Mary Porter (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Porter
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Mary Porter
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Porter
Son · 1940 · age 27 · b. ~1913 · Massachusetts
★ You are viewing this record
Sibling
Margaret Porter
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marion Porter
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Porter
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Porter
Sibling · 1940 · 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
1940 US Federal Census — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
26 people indexed on this census page (nara:1940:m-t0627-01697-00392)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Stanley Omock | 47 | Lodger | Electrical Worker | Poland |
| 2 | Robert Dunny | 14 | Son | — | Massachusetts |
| 3 | James P. Burke | 48 | Lodger | Painter | Massachusetts |
| 4 | Mary Ferguson | 65 | Daughter | — | Massachusetts |
| 5 | Leona Gildason | 15 | Daughter | — | Massachusetts |
| 6 | John Stansone | 46 | Lodger | Heater | Lithuania |
| 7 | Eva Stansone | 45 | Lodger | Stitcher | Lithuania |
| 8 | Martin Kenneally | 65 | Lodger | — | Eire (Irish Free State) |
| 9 | Mary Porter | 54 | Head | — | Massachusetts |
| 10 | Marion Porter | 29 | Daughter | Office Clerk | New Hampshire |
| 11 | James Porter THIS PERSON | 27 | Son | Production Clerk | New Hampshire |
| 12 | Helen Porter | 24 | Daughter | Office Clerk | Massachusetts |
| 13 | Margaret Porter | 22 | Daughter | Office Clerk | Massachusetts |
| 14 | Agnes Porter | 11 | Daughter | — | Massachusetts |
| 15 | Eva Robinson | 53 | Lodger | Housekeeper | Canada |
| 16 | Helena Callahan | 53 | Head | — | New Hampshire |
| 17 | Miller Mary A. | 66 | Nun | — | New York |
| 18 | Mccarthy Lillian M. | 47 | Nun | — | Massachusetts |
| 19 | O'Brien Mary F. | 50 | Nun | — | Massachusetts |
| 20 | Mc Ginley Mary Y. | 50 | Nun | — | Maryland |
| 21 | Delsbury Mary K. | 44 | Nun | — | Massachusetts |
| 22 | Ruth Genevieve M. | 46 | Nun | — | Massachusetts |
| 23 | Flannagan Mary E. | 42 | Nun | — | Massachusetts |
| 24 | Johnson Marie T. | 41 | Nun | — | Massachusetts |
| 25 | Sullivan Marie T. | 40 | Nun | — | Pennsylvania |
| 26 | Wightman Helen | 32 | Nun | — | Massachusetts |
Pedigree Summary
James + 4 siblings
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 1940 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)