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William Long — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this William Long across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 3-person household.
Age 65
b. ~1875
Male
Head
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Long |
| Given Name | William Paul |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Swissvale |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Electrician |
| Industry | Building |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 3000 |
| Highest Grade | H 2 |
| 1935 Residence | Penna |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Electrician |
| Township / Ward | Boro |
| Est. Birth Year | ~1875 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Catherine Long | Daughter | — | 27 | ~1913 |
| William Long | Head | — | 65 | ~1875 |
| Nettie Long | Spouse | — | 64 | ~1876 |
Census Appearances
1900
Allegheny, Pennsylvania
Head, age 26
Allegheny, Pennsylvania · implied b. ~1874 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | William C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Kansas |
| Birth Month | April |
| Birth Year | 1874 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Connecticut |
| Occupation | Electrician |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1910
Allegheny, Pennsylvania
Head, age 36
Allegheny, Pennsylvania · implied b. ~1874 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | William Paul |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Kansas |
| Years Married | 10 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Connecticut |
| Occupation | Electrician |
| Industry | Real Estate |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1920
Allegheny, Pennsylvania
Head, age 44
Allegheny, Pennsylvania · implied b. ~1876 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Kansas |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Electrician |
| Industry | Power Plant |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Allegheny, Pennsylvania
Head, age 55
Allegheny, Pennsylvania · implied b. ~1875 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | William P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 25 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Connecticut |
| Occupation | Mechanic |
| Industry | Building |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 8600 |
| Radio Set | R |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Allegheny-County, Pennsylvania
Head, age 65
Allegheny-County, Pennsylvania · implied b. ~1875 — 3 household members
| Surname | Long |
| Given Name | William Paul |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Swissvale |
| 1935 Residence (County) | Allegheny |
| Occupation | Electrician |
| Industry | Building |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 3000 |
| Highest Grade | H 2 |
| 1935 Residence | Penna |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Long across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Long
Head · 1940 · age 65 · b. ~1875 · 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 — 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-t0627-03403-00007)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Kitty J. Alexander | 25 | wife | — | Penna |
| 2 | John W. Helms | 25 | Head | Geologist | Penna |
| 3 | Doris R. Helms | 25 | wife | — | Penna |
| 4 | Mary D. Helms | 20 | sister | — | Penna |
| 5 | Raymond R. G. Meckley | 31 | Head | Clerk | Penna |
| 6 | Jean S. Meckley | 31 | wife | — | Penna |
| 7 | Wilson H. Hadley | 37 | Head | Chemist | Penna |
| 8 | Martha B. Hadley | 36 | wife | — | Ohio |
| 9 | Extra Line | None | — | — | — |
| 10 | Extra Line | None | — | — | — |
| 11 | John Carroll Bereau | 24 | Head | Sales Engineer | Oklahoma |
| 12 | Margaret Anne Bereau | 23 | wife | — | Oklahoma |
| 13 | Grant C. Copper | 31 | Head | Cab Driver | Penna |
| 14 | Elizabeth E. Copper | 24 | wife | — | Penna |
| 15 | S. G. Davis | 28 | Head | Electrical Engineer | W. C. |
| 16 | Miriam A. Davis | 29 | wife | — | Montana |
| 17 | Hugh F. Davis | 2 | son | — | Penna |
| 18 | Gerald J. Freece | 31 | Head | Draftsman | Ohio |
| 19 | Thelma S. Freece | 30 | wife | — | West Virginia |
| 20 | John A. De May | 43 | Head | Traveling Salesman | Austria-Hungary |
| 21 | Anne E. De May | 40 | wife | — | Penna |
| 22 | John Andrew De May | 14 | son | — | Penna |
| 23 | Patricia S. De May | 10 | daughter | — | Penna |
| 24 | Dorothy J. De May | 5 | daughter | — | Ohio |
| 25 | Mary L. De May | 2 | daughter | — | Penna |
| 26 | J. W. Cogley | 59 | Head | — | Penna |
| 27 | Irene M. Cogley | 55 | wife | — | Penna |
| 28 | Nattie J. Macketh | 74 | father-in-law | — | Penna |
| 29 | Lillian May Macketh | 74 | mother-in-law | — | Penna |
| 30 | James A. Kennedy | 44 | Head | Retail Salesman | Penna |
| 31 | Margaret M. Kennedy | 41 | wife | — | Penna |
| 32 | Mary Anne Kennedy | 13 | daughter | — | Penna |
| 33 | James A. Kennedy | 10 | son | — | Penna |
| 34 | David M. Kennedy | 6 | son | — | Penna |
| 35 | William Paul Long THIS PERSON | 65 | Head | Electrician | Kansas |
| 36 | Nettie M. Long | 64 | wife | — | Penna |
| 37 | Catherine H. Long | 27 | daughter | Stenographer | Penna |
| 38 | Stella D. Mcdowell | 54 | Head | Principal | Penna |
| 39 | Sara B. Mcdowell | 50 | Partner | Teacher | Penna |
| 40 | Wm. B. Nathover | 57 | Head | President | Penna |
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)