JC
Joseph Costa — 1940 US Census Record
Model Tree available1940 United States Federal Census · Erie-County, Pennsylvania
Our Model Tree links this Joseph Costa across the 1920, 1930 and 1940 US Censuses in Erie-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Marian & Rose — first a head (b.~1913), then head of a 5-person household.
Age 27
b. ~1913
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Erie-County, Pennsylvania |
| Surname | Costa |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Erie |
| 1935 Residence (County) | Erie |
| Additional Details | |
| Occupation | Machinist |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 326 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Machinist |
| Township / Ward | Erie |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Joseph Costa | Son | — | 3 | ~1937 |
| Marion Costa | Spouse | — | 23 | ~1917 |
| Anthony Costa | Son | — | 1 | ~1939 |
| Joseph Costa | Head | — | 27 | ~1913 |
| Rebecca Costa | Daughter | — | 5 | ~1935 |
Census Appearances
1920
Erie, Pennsylvania
Son, age 6
Erie, Pennsylvania · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Costa |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | none |
| Speaks English | Yes |
| Mother Tongue | Portuguese |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Erie, Pennsylvania
Son, age 17
Erie, Pennsylvania · implied b. ~1913 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Costa |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Erie-County, Pennsylvania
Head, age 27
Erie-County, Pennsylvania · implied b. ~1913 — 5 household members
| Surname | Costa |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Erie |
| 1935 Residence (County) | Erie |
| Occupation | Machinist |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 326 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Joseph Costa across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Marian Costa (~0.92 confidence) and mother Rose Costa (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Marian Costa
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Rose Costa
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Costa
Head · 1940 · age 27 · b. ~1913 · 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 — Erie-County, Pennsylvania
Open full size
1940 US Federal Census — Erie-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03649-00164)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mildred V Steingraber | 47 | Wife | — | Pennsylvania |
| 42 | June M Steingraber | 17 | Daughter | — | Pennsylvania |
| 43 | Nancy M Steingraber | 13 | Daughter | — | Pennsylvania |
| 44 | Robert T Nolan | 66 | Head | Salesman | Pennsylvania |
| 45 | Martha A Nolan | 61 | Wife | — | Ohio |
| 46 | Hyde C Clayton | 36 | Head | Electrician | Pennsylvania |
| 47 | Margaret B Clayton | 27 | Wife | Housewife | Pennsylvania |
| 48 | Lloyd T Curry | 23 | Head | Laborer | Pennsylvania |
| 49 | Monica E Curry | 21 | Wife | — | Pennsylvania |
| 50 | Daniel J Curry | 3 | Daughter | — | Pennsylvania |
| 51 | Robert F Walter | 60 | Head | Salesman | Pennsylvania |
| 52 | Edwina R Walter | 31 | Wife | Saleslady | Pennsylvania |
| 53 | Andrew Abrahazim | 51 | Head | — | Hungary |
| 54 | Andrew Abrahazim | 35 | Son | Pipe Fitter | New York |
| 55 | Margaret C Abrahazim | 32 | Daughter | Saleslady | Hungary |
| 56 | Frank Abrahazim | 29 | Son | Laborer | New York |
| 57 | Elmer A Abrahazim | 27 | Son | — | Pennsylvania |
| 58 | Ludwig A Heimelmann | 75 | Head | Baker - Retail | Pennsylvania |
| 59 | Ethel A Heimelmann | 52 | Daughter | Baker | Pennsylvania |
| 60 | Elizabeth A Heimelmann | 22 | Daughter | Saleslady | Pennsylvania |
| 61 | End Of Block At Block 80 - Begin Block 81 | None | — | — | — |
| 62 | John Di Mario | 68 | Head | Laborer | Italy |
| 63 | Rose Di Mario | 49 | Wife | — | Italy |
| 64 | Anthony Di Mario | 27 | Son | Laborer | Pennsylvania |
| 65 | Celina M Di Mario | 23 | Daughter | Laborer | Pennsylvania |
| 66 | Joseph Di Mario | 21 | Son | — | Pennsylvania |
| 67 | Philip Di Mario | 18 | Son | Laborer | Pennsylvania |
| 68 | Marion Costa | 59 | Head | Watchman | Portugal |
| 69 | Beatrice Costa | 45 | Wife | — | Portugal |
| 70 | Anthony Costa | 23 | Son | Laborer | Pennsylvania |
| 71 | Marie Costa | 20 | Daughter | Saleslady | Pennsylvania |
| 72 | Virginia M Costa | 18 | Daughter | — | Pennsylvania |
| 73 | Anna M Costa | 16 | Daughter | — | Pennsylvania |
| 74 | Joseph Costa THIS PERSON | 27 | Head | Machinist | Pennsylvania |
| 75 | Marion E Costa | 23 | Wife | Saleslady | Pennsylvania |
| 76 | Rebecca A Costa | 5 | Daughter | — | Pennsylvania |
| 77 | Joseph Costa | 3 | Son | — | Pennsylvania |
| 78 | Anthony Costa | 1 | Son | — | Pennsylvania |
| 79 | Dominick A Juliante | 58 | Head | Stone Mason | Italy |
| 80 | Mary M Juliante | 53 | Wife | — | Italy |
Pedigree Summary
Joseph
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)