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James Mullen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this James Mullen across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1915), then head of a 7-person household.
Age 25
b. ~1915
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Mullen |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Laborer |
| Industry | Building Construction |
| Class of Worker | PW |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1915 |
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 |
|---|---|---|---|---|
| Lawrence Mullen | Son | — | 14 | ~1926 |
| James Mullen | Head | — | 59 | ~1881 |
| Eva Mullen | Spouse | — | 49 | ~1891 |
| Leo Mullen | Son | — | 15 | ~1925 |
| Victor Mullen | Son | — | 23 | ~1917 |
| Florence Mullen | Daughter | — | 16 | ~1924 |
| James Mullen | Son | — | 25 | ~1915 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 14
Allegheny, Pennsylvania · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullen |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 25
Allegheny-County, Pennsylvania · implied b. ~1915 — 7 household members
| Surname | Mullen |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Occupation | Laborer |
| Industry | Building Construction |
| Class of Worker | PW |
| Income (1939) | 0 |
| Highest Grade | No 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 James Mullen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Mullen
Son · 1940 · age 25 · b. ~1915 · Pennsylvania
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Sibling
Leo Mullen
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Victor Mullen
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Mullen
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Mullen
Sibling · 1940 · age 14
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 — 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-t0627-03652-00350)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sophie Adasiewicz | 47 | Wife | — | Poland |
| 2 | Helen Adasiewicz | 24 | Daughter | Presser | Pennsylvania |
| 3 | Eugene Adasiewicz | 23 | Son | Checker | Pennsylvania |
| 4 | Jennie Adasiewicz | 21 | Daughter | New Worker | Pennsylvania |
| 5 | Stanley Adasiewicz | 19 | Son | Laborer | Pennsylvania |
| 6 | Philomena Adasiewicz | 13 | Daughter | — | Pennsylvania |
| 7 | Dolores Adasiewicz | 10 | Daughter | — | Pennsylvania |
| 8 | Stephen Povalo | 60 | Head | Janitor | Czechoslovakia |
| 9 | Susanna Povalo | 62 | Wife | — | Czechoslovakia |
| 10 | John Betkowski | 51 | Head | Laborer | Poland |
| 11 | Josephine Betkowski | 49 | Wife | — | Poland |
| 12 | Harry Betkowski | 19 | Son | Laborer | Pennsylvania |
| 13 | Florence Betkowski | 16 | Daughter | New Worker | Pennsylvania |
| 14 | Joseph Betkowski | 14 | Son | — | Pennsylvania |
| 15 | Raymond Betkowski | 12 | Son | — | Pennsylvania |
| 16 | Irene Betkowski | 10 | Daughter | — | Pennsylvania |
| 17 | John Betkowski | 7 | Son | — | Pennsylvania |
| 18 | Peter Narwecki | 52 | Head | Laborer | Poland |
| 19 | Josephine Narwecki | 52 | Wife | — | Poland |
| 20 | Leona Narwecki | 27 | Daughter | Mail Clerk | Pennsylvania |
| 21 | Regina Narwecki | 18 | Daughter | — | Pennsylvania |
| 22 | Walter Narwecki | 13 | Son | — | Pennsylvania |
| 23 | John Carles | 54 | Head | Car Oiler | Greece |
| 24 | Spyros Carles | 20 | Son | — | Greece |
| 25 | Emmanuel Raskos | 52 | Head | Vendor | Greece |
| 26 | James Raskos | 58 | Brother | Vendor | Greece |
| 27 | Andrew Nowotniak | 46 | Head | Elevator Operator | Poland |
| 28 | James Mullen | 59 | Head | Laborer | Pennsylvania |
| 29 | Eva Mullen | 49 | Wife | — | Poland |
| 30 | James Jr. Mullen THIS PERSON | 25 | Son | Laborer | Pennsylvania |
| 31 | Victor Mullen | 23 | Son | Laborer | Pennsylvania |
| 32 | Florence Mullen | 16 | Daughter | — | Pennsylvania |
| 33 | Leo Mullen | 15 | Son | — | Pennsylvania |
| 34 | Lawrence Mullen | 14 | Son | — | Pennsylvania |
| 35 | Peter Sylvester | 46 | Head | Laborer | Italy |
| 36 | Philomena Sylvester | 38 | Wife | — | Pennsylvania |
| 37 | Lucy Sylvester | 20 | Daughter | Sausage Maker | Pennsylvania |
| 38 | Salvatore Sylvester | 18 | Son | New Worker | Pennsylvania |
| 39 | Stephen Sylvester | 17 | Son | New Worker | Pennsylvania |
| 40 | Carmello Sylvester | 15 | Son | — | Pennsylvania |
Related Census Records
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)