WM
William Mullen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this William Mullen across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 7-person household.
Age 19
b. ~1921
Male
Son
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Mullen |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | New Field |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | truck driver |
| Industry | coal |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 20 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Truck Driver |
| Township / Ward | New Field |
| Est. Birth Year | ~1921 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| William Mullen | Son | — | 19 | ~1921 |
| Lois Mullen | Daughter | — | 21 | ~1919 |
| James Mullen | Son | — | 15 | ~1925 |
| Robert Mullen | Head | — | 43 | ~1897 |
| John Mullen | Son | — | 12 | ~1928 |
| Helen Mullen | Daughter | — | 10 | ~1930 |
| Sadie Mullen | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 9
Allegheny, Pennsylvania · implied b. ~1921 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullen |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Allegheny-County, Pennsylvania
Son, age 19
Allegheny-County, Pennsylvania · implied b. ~1921 — 7 household members
| Surname | Mullen |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | New Field |
| 1935 Residence (County) | Allegheny |
| Occupation | truck driver |
| Industry | coal |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 20 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 William Mullen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Mullen
Son · 1940 · age 19 · b. ~1921 · Pennsylvania
★ You are viewing this record
Sibling
Helen Mullen
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mullen
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Mullen
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mullen
Sibling · 1940 · age 12
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
41 people indexed on this census page (nara:1940:m-t0627-03414-00538)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Dinko | 53 | Head | Loader | Austria |
| 2 | Annie Dinko | 50 | Wife | — | Austria |
| 3 | John Dinko | 22 | Son | Driller | Pennsylvania |
| 4 | Andrew Dinko | 12 | Son | — | Pennsylvania |
| 5 | Anna Gramhofer | 65 | Head | — | Austria |
| 6 | Ralph Gramhofer | 25 | Son | Driller | Pennsylvania |
| 7 | Gertrude Gramhofer | 22 | Daughter | — | Pennsylvania |
| 8 | Paul Dufour | 56 | Head | Operator | Poland |
| 9 | Victoria Dufour | 47 | Wife | — | Poland |
| 10 | John Valentino | 67 | Head | Loader | Austria |
| 11 | Elizabeth Valentino | 65 | Wife | — | Austria |
| 12 | Emil Valentino | 41 | Son | Handyman | Austria |
| 13 | Joseph Valentino | 29 | Son | Loader | Pennsylvania |
| 14 | Edward Valentino | 23 | Son | Paperhanger | Pennsylvania |
| 15 | William Shulty | 67 | Head | — | Russia |
| 16 | Anna Shulty | 61 | Wife | — | Russia |
| 17 | Andrew Shulty | 29 | Son | Laborer | Pennsylvania |
| 18 | Leon Shulty | 27 | Son | Laborer | Pennsylvania |
| 19 | Josephine Shulty | 24 | Daughter | Maid | Pennsylvania |
| 20 | Robert Mullen | 43 | Head | Fire Boss | Pennsylvania |
| 21 | Sadie Mullen | 40 | Wife | — | Alabama |
| 22 | Lois Mullen | 21 | Daughter | Waitress | Pennsylvania |
| 23 | William Mullen THIS PERSON | 19 | Son | Truck Driver | Alabama |
| 24 | James Mullen | 15 | Son | — | Pennsylvania |
| 25 | John Mullen | 12 | Son | — | Pennsylvania |
| 26 | Helen Mullen | 10 | Daughter | — | Pennsylvania |
| 27 | Joseph Conte | 65 | Head | — | Italy |
| 28 | Marguata Conte | 65 | Wife | — | Italy |
| 29 | Madeline Conte | 22 | Daughter | — | Pennsylvania |
| 30 | Jack Conte | 21 | Son | Motorman | Pennsylvania |
| 31 | Jennie Ceccato | 40 | Head | — | Iowa |
| 32 | Oliver Ceccato | 21 | Son | Loader | Pennsylvania |
| 33 | Blanche Ceccato | 12 | Daughter | — | Pennsylvania |
| 34 | Joseph Ceccato | 10 | Son | — | Pennsylvania |
| 35 | Andrew La Borde | 39 | Head | Shot Firer | Pennsylvania |
| 36 | Ann La Borde | 36 | Wife | — | Pennsylvania |
| 37 | John La Borde | 10 | Son | — | Pennsylvania |
| 38 | Ann La Borde | 5 | Daughter | — | Pennsylvania |
| 39 | William Degendebl | 27 | Head | Loader | Pennsylvania |
| 40 | Jennie Degendebl | 23 | Wife | — | Pennsylvania |
| 41 | William Degendebl | 5 | Son | — | Pennsylvania |
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)