JP
James Porter — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this James Porter across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1870), then head of a 5-person household.
Age 70
b. ~1870
Male
Head
Born: England
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Porter |
| Given Name | James D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Widowed |
| Birthplace | England |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Additional Details | |
| Industry | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth Country | England |
| Birthplace (normalized) | england |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1870 |
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 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Irma Refine | Daughter | — | 3 | ~1937 |
| Florence Refine | Daughter | — | 35 | ~1905 |
| James Porter | Head | — | 70 | ~1870 |
| Warner Refine | Other | — | 38 | ~1902 |
| Richard Refine | Other | — | ~1940 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 49
Allegheny, Pennsylvania · implied b. ~1871 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Porter |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1890 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Machinist |
| Industry | Locomotive Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | England |
| Year of Naturalization | 1894 |
| Birthplace (normalized) | england |
1930
Allegheny, Pennsylvania
Head, age 60
Allegheny, Pennsylvania · implied b. ~1870 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Porter |
| Given Name | James W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1891 |
| Age at First Marriage | 26 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Machinist |
| Industry | Locomotive |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 6000 |
| Radio Set | R |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Allegheny-County, Pennsylvania
Head, age 70
Allegheny-County, Pennsylvania · implied b. ~1870 — 5 household members
| Surname | Porter |
| Given Name | James D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Widowed |
| Birthplace | England |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Industry | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth Country | England |
| Birthplace (normalized) | england |
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.
Show:
This person
Anchor record
James Porter
Head · 1940 · age 70 · b. ~1870 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03658-00231)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph W Ryk | 19 | Grandson | Clerk | Penna |
| 2 | Alexander Sifford | 39 | Head | Policeman | Penna |
| 3 | Florence Sifford | 29 | Wife | — | Penna |
| 4 | Constance M Sifford | 9 | Daughter | — | Penna |
| 5 | Lawrence A Sifford | 7 | Son | — | Penna |
| 6 | Carol L Sifford | 5 | Daughter | — | Penna |
| 7 | F. Louise Sifford | 3 | Daughter | — | Penna |
| 8 | Andrew Sifford | 2 | Son | — | Penna |
| 9 | James D Porter THIS PERSON | 70 | Head | — | England |
| 10 | Warner Refine | 38 | Son-in-law | Clerk | Penna |
| 11 | Florence Refine | 35 | Daughter | — | Penna |
| 12 | Irma J Refine | 3 | Daughter | — | Penna |
| 13 | Richard A Refine | 0 | Grandson | — | Penna |
| 14 | James Jr Porter | 43 | Head | Clerk Sales | Penna |
| 15 | Alberta M Porter | 43 | Wife | — | Penna |
| 16 | John T Waters | 68 | Mother-in-law | — | England |
| 17 | Ida J Waters | 64 | Mother-in-law | — | Penna |
| 18 | Robert Grove | 52 | Head | Policeman | Penna |
| 19 | Sarah L Grove | 49 | Wife | — | Penna |
| 20 | Mary P Grove | 29 | Daughter | Clerk | Penna |
| 21 | Norma Grove | 19 | Daughter | Stenographer | Penna |
| 22 | Rose E Walsh | 38 | Head | Switch Board Operator | Penna |
| 23 | Jack T Walsh | 16 | Son | — | Penna |
| 24 | Paul W Walsh | 9 | Son | — | Penna |
| 25 | Catharine Taylor | 62 | Aunt | — | Penna |
| 26 | Robert L Yeager | 50 | Roomer | Roll Turner | Nevada |
| 27 | Charles George | 40 | Head | Pattern Maker | Penna |
| 28 | Alberta B George | 37 | Wife | — | Penna |
| 29 | Alberta E George | 13 | Daughter | — | Penna |
| 30 | Samuel George | 46 | Brother | Linotype Setter | Penna |
| 31 | Edmund S George | 12 | Nephew | — | Penna |
| 32 | John L Winning | 47 | Head | Chief Clerk | Scotland |
| 33 | Marie Winning | 45 | Wife | — | Ohio |
| 34 | James L Winning | 26 | Son | Clerk Office | Penna |
| 35 | Marie P Winning | 12 | Daughter | — | Penna |
| 36 | Mary S Mcclelland | 68 | Head | — | Scotland |
| 37 | Rebecca Mellor | 44 | Daughter | Operator | Penna |
| 38 | Edwin Trembath | 58 | Head | Maintenance Man | England |
| 39 | Jane L Trembath | 55 | Wife | — | England |
| 40 | Edwin Jr Trembath | 19 | Son | — | Penna |
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)