WM
William Mcconnell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this William Mcconnell across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 2-person household.
Age 51
b. ~1889
Male
Head
Born: Pennsylvania
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | McConnell |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Campton |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Painter |
| Industry | Private practice |
| Class of Worker | OA |
| Hours Worked | 0 |
| Income (1939) | 500 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Painter |
| Township / Ward | Campton |
| Est. Birth Year | ~1889 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Richard Mcconnell | Son | — | 18 | ~1922 |
| William Mcconnell | Head | — | 51 | ~1889 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 30
Allegheny, Pennsylvania · implied b. ~1890 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McConnall |
| Given Name | Wm H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Proprietor |
| Industry | Confectionery |
| Class of Worker | O |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 41
Allegheny, Pennsylvania · implied b. ~1889 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McConnelly |
| Given Name | William R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 26 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Contractor |
| Industry | Painting House |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 51
Allegheny-County, Pennsylvania · implied b. ~1889 — 2 household members
| Surname | McConnell |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Campton |
| 1935 Residence (County) | Allegheny |
| Occupation | Painter |
| Industry | Private practice |
| Class of Worker | OA |
| Hours Worked | 0 |
| Income (1939) | 500 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| 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 Mcconnell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Mcconnell
Head · 1940 · age 51 · b. ~1889 · Pennsylvania
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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-t0627-03405-00146)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Barbara Ann Stocker | 1 | Daughter | — | Pennsylvania |
| 2 | Gerald Kritzer | 38 | Head | Janitor | Pennsylvania |
| 3 | Irene D. Kritzer | 31 | Wife | — | Ohio |
| 4 | Richard Kritzer | 16 | Son | — | Pennsylvania |
| 5 | Joan Kritzer | 14 | Daughter | — | Pennsylvania |
| 6 | Layton Kritzer | 12 | Son | — | Pennsylvania |
| 7 | Anita Kritzer | 5 | Daughter | — | Pennsylvania |
| 8 | Janet Kritzer | 3 | Daughter | — | Pennsylvania |
| 9 | David Kritzer | 3 | Son | — | Pennsylvania |
| 10 | Paul Kritzer | 1 | Son | — | Pennsylvania |
| 11 | Howard Tucker | 39 | Head | 40 | Ohio |
| 12 | Nettie Tucker | 36 | Wife | — | Ohio |
| 13 | Levonna Tucker | 18 | Daughter | Clerk | Pennsylvania |
| 14 | Junior Tucker | 15 | Son | — | Pennsylvania |
| 15 | Donald Tucker | 9 | Son | — | Pennsylvania |
| 16 | William Mcconnell THIS PERSON | 51 | Head | Painter | Pennsylvania |
| 17 | Richard Mcconnell | 18 | Son | — | Pennsylvania |
| 18 | Harry Shindledecker | 53 | Head | Laborer | Pennsylvania |
| 19 | Minnie Shindledecker | 46 | Wife | — | Pennsylvania |
| 20 | Helen Shindledecker | 26 | Daughter | Clerk | Pennsylvania |
| 21 | Esther Kerr | 25 | Daughter | — | Pennsylvania |
| 22 | Harry Jr. Kerr | 24 | Son-in-law | — | Pennsylvania |
| 23 | James E. Kerr | 2 | Son | — | Pennsylvania |
| 24 | Charles Thompson | 24 | Head | Winchman | Pennsylvania |
| 25 | Twila Thompson | 19 | Wife | — | Pennsylvania |
| 26 | Ernest Smith | 41 | Head | Manager | Pennsylvania |
| 27 | Grace Smith | 41 | Wife | — | Pennsylvania |
| 28 | Ernest Smith | 20 | Son | Laborer | Pennsylvania |
| 29 | Erna Smith | 20 | Daughter | Clerk | Pennsylvania |
| 30 | Albert Wretz | 36 | Head | Painter | Pennsylvania |
| 31 | Esther Wretz | 35 | Wife | — | Pennsylvania |
| 32 | Richard Wretz | 5 | Son | — | Pennsylvania |
| 33 | Walter Humes | 36 | Head | Foreman | Pennsylvania |
| 34 | Ruth Humes | 34 | Wife | — | Pennsylvania |
| 35 | Walter Jr. Humes | 2 | Son | — | Pennsylvania |
| 36 | Robert G. West | 71 | Father-in-law | — | Pennsylvania |
| 37 | Laura C. West | 50 | Mother-in-law | — | Pennsylvania |
| 38 | Mayme Wolfe | 56 | Head | Housekeeper | Pennsylvania |
| 39 | Willard Wolfe | 25 | Son | Clerk | Pennsylvania |
| 40 | Anthony Daniel | 51 | Head | Janitor | Czechoslovakia |
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)