WM
William Mccullough — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this William Mccullough across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1914), then head of a 7-person household.
Age 26
b. ~1914
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | McCullough |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Avalon Borough |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Salesman |
| Industry | Wholesale Paint Company |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 2786 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Salesman |
| Township / Ward | Avalon Borough |
| Est. Birth Year | ~1914 |
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 Mccullough | Son | — | 26 | ~1914 |
| Dorothy Mccullough | Daughter | — | 14 | ~1926 |
| Clara Mccullough | Spouse | — | 51 | ~1889 |
| Robert Mccullough | Son | — | 23 | ~1917 |
| John Mccullough | Son | — | 19 | ~1921 |
| William Mccullough | Head | — | 54 | ~1886 |
| Thomas Mccullough | Son | — | 15 | ~1925 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 6
Allegheny, Pennsylvania · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCullough |
| Given Name | William H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 16
Allegheny, Pennsylvania · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCullough |
| Given Name | William E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| 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 26
Allegheny-County, Pennsylvania · implied b. ~1914 — 7 household members
| Surname | McCullough |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Avalon Borough |
| 1935 Residence (County) | Allegheny |
| Occupation | Salesman |
| Industry | Wholesale Paint Company |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 2786 |
| Highest Grade | Hs 4 |
| 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 William Mccullough across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Mccullough (~0.92 confidence) and father William Mccullough (~0.92 confidence) and mother Clara Mccullough (~0.92 confidence) and mother Clara Mccullough (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Mccullough
b. ~1886
Source father
● Household
· direct · ~0.92
Father
William Mccullough
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Clara Mccullough
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Clara Mccullough
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Mccullough
Son · 1940 · age 26 · b. ~1914 · Pennsylvania
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Sibling
Robert Mccullough
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Mccullough
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mccullough
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Mccullough
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-t0627-03397-00150)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William R. Young | 52 | Son | — | Pennsylvania |
| 42 | Marjorie Young | 48 | Wife | — | Pennsylvania |
| 43 | Theodore Berger | 38 | Head | Dredge Operator | Pennsylvania |
| 44 | Myrtle Berger | 32 | Wife | — | Pennsylvania |
| 45 | Mildred Berger | 13 | Daughter | — | Pennsylvania |
| 46 | Kathleen Berger | 12 | Daughter | — | Pennsylvania |
| 47 | William Neilson | 62 | Head | Machinist | Scotland |
| 48 | Helen Neilson | 56 | Wife | — | Pennsylvania |
| 49 | Mary Neilson | 32 | Daughter | Stenographer | Pennsylvania |
| 50 | Anita Neilson | 27 | Daughter | Stenographer | Pennsylvania |
| 51 | James Neilson | 25 | Son | Burner | Pennsylvania |
| 52 | Geraldine Neilson | 22 | Daughter | Nurse | Pennsylvania |
| 53 | William F. Burgess | 35 | Head | District Manager | Virginia |
| 54 | Elizabeth Burgess | 30 | Wife | — | West Virginia |
| 55 | Norma Burgess | 0 | Daughter | — | Pennsylvania |
| 56 | Jeannette Mckelvey | 38 | Head | — | Pennsylvania |
| 57 | Mary Mckelvey | 18 | Daughter | — | Tennessee |
| 58 | Sara Ann Mckelvey | 14 | Daughter | — | Tennessee |
| 59 | William H. Mckelvey | 12 | Son | — | Tennessee |
| 60 | Nell White | 42 | Sister | — | Ohio |
| 61 | Edith E. Mcmahon | 45 | Head | Cashier | Pennsylvania |
| 62 | Harry Mcmahon | 16 | Son | — | Pennsylvania |
| 63 | Lois Mcmahon | 13 | Daughter | — | Pennsylvania |
| 64 | Lulu M. Gibson | 77 | Mother | — | Pennsylvania |
| 65 | Charles Sreppe | 46 | Head | Salesman | Pennsylvania |
| 66 | Ethyl Sreppe | 43 | Wife | — | Pennsylvania |
| 67 | William C. Sreppe | 22 | Son | File Clerk | Pennsylvania |
| 68 | Norman Jobst | 36 | Head | Chauffeur | Minnesota |
| 69 | Gertrude Jobst | 33 | Wife | — | Pennsylvania |
| 70 | Verne Jobst | 8 | Son | — | California |
| 71 | Margaret Ascher | 65 | Head | — | Pennsylvania |
| 72 | Rose Leitey | 67 | Lodger | Music Teacher | Ohio |
| 73 | William Mccullough | 54 | Head | Salesman | Pennsylvania |
| 74 | Clara Mccullough | 51 | Wife | — | Pennsylvania |
| 75 | William Mccullough THIS PERSON | 26 | Son | Salesman | Pennsylvania |
| 76 | Robert Mccullough | 23 | Son | Salesman | Pennsylvania |
| 77 | John R. Mccullough | 19 | Son | Stenographer | Pennsylvania |
| 78 | Thomas Mccullough | 15 | Son | — | Pennsylvania |
| 79 | Dorothy Mccullough | 14 | Daughter | — | Pennsylvania |
| 80 | John S. Kelse | 70 | Head | Medical Doctor | Pennsylvania |
Related Census Records
Pedigree Summary
William + 4 siblings
Gen 1 · 4 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)