WC
William Carroll — 1940 US Census Record
Model Tree available1940 United States Federal Census · Erie-County, Pennsylvania
Our Model Tree links this William Carroll across the 1920, 1930 and 1940 US Censuses in Erie-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Thomas & Agnes — first a son (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Erie-County, Pennsylvania |
| Surname | Carroll |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Erie city |
| 1935 Residence (County) | Erie |
| Additional Details | |
| Occupation | Oil Engineer |
| Industry | Stores |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1943 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Oil Engineer |
| Township / Ward | Erie City |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Mary Carroll | Daughter | — | 21 | ~1919 |
| Ann Carroll | Head | — | 46 | ~1894 |
| William Carroll | Son | — | 23 | ~1917 |
Census Appearances
1920
Erie, Pennsylvania
Son, age 3
Erie, Pennsylvania · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | William S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Erie, Pennsylvania
Son, age 13
Erie, Pennsylvania · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| 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
Erie-County, Pennsylvania
Son, age 23
Erie-County, Pennsylvania · implied b. ~1917 — 3 household members
| Surname | Carroll |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Erie city |
| 1935 Residence (County) | Erie |
| Occupation | Oil Engineer |
| Industry | Stores |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1943 |
| Highest Grade | H-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 Carroll across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Carroll (~0.92 confidence) and mother Agnes Carroll (~0.92 confidence) and mother Anne Carroll (~0.92 confidence) and mother Ann Carroll (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Carroll
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Agnes Carroll
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Anne Carroll
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Ann Carroll
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Carroll
Son · 1940 · age 23 · b. ~1917 · Pennsylvania
★ You are viewing this record
Sibling
Mary Carroll
Sibling · 1940 · age 21
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 — Erie-County, Pennsylvania
Open full size
1940 US Federal Census — Erie-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03648-00055)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arland J. Neave | 43 | Head | Accountant | Ohio |
| 2 | Mary G. Neave | 44 | Wife | Saleswoman | Pennsylvania |
| 3 | Margaret J. Neave | 20 | Daughter | — | Pennsylvania |
| 4 | Helen Frances Bacher | 42 | Lodger | Registered Nurse | Pennsylvania |
| 5 | William G. Fechley | 39 | Head | Distributor | Pennsylvania |
| 6 | Mary E. Fechley | 39 | Wife | — | Pennsylvania |
| 7 | William Fechley | 14 | Son | — | Pennsylvania |
| 8 | Alice Fechley | 11 | Daughter | — | Pennsylvania |
| 9 | Rae B. Sigworth | 45 | Aunt | — | Pennsylvania |
| 10 | George M. Hanson | 47 | Head | Constable | New York |
| 11 | Anna M. Hanson | 47 | Wife | — | Pennsylvania |
| 12 | Georgiana Hanson | 14 | Daughter | — | Pennsylvania |
| 13 | Clarence Pollitt | 72 | Head | Dentist | Kentucky |
| 14 | Ann Pollitt | 39 | Daughter | — | Pennsylvania |
| 15 | Robert C. Pollitt | 38 | Son | Dentist | Pennsylvania |
| 16 | Harry S. Blough | 51 | Head | Chiropractor | Ohio |
| 17 | Helen Blough | 47 | Wife | — | Pennsylvania |
| 18 | Mary Jane Blough | 22 | Daughter | Receptionist | Pennsylvania |
| 19 | Sally Blough | 7 | Daughter | — | Pennsylvania |
| 20 | Florence Hall | 46 | Head | Proprietor | Pennsylvania |
| 21 | James Hall | 22 | Son | Loading Trucks | Pennsylvania |
| 22 | Corline Kamery | 58 | Lodger | Salesman | Ohio |
| 23 | Bertha Long | 67 | Head | — | New York |
| 24 | Daniel Silber | 40 | Head | Salesman | New York |
| 25 | Belle Silber | 34 | Wife | — | New York |
| 26 | Edward Petrillo | 27 | Head | Lawyer | Pennsylvania |
| 27 | Lois M. Petrillo | 23 | Wife | Stenographer | Pennsylvania |
| 28 | Virgil Nevice | 37 | Head | Bank Clerk | Pennsylvania |
| 29 | Lena S. Simon | 82 | Head | — | Pennsylvania |
| 30 | Mary L. Thomas | 72 | Sister | — | Pennsylvania |
| 31 | Ann Carroll | 46 | Head | — | Pennsylvania |
| 32 | William Carroll THIS PERSON | 23 | Son | Oil Engineer | Pennsylvania |
| 33 | Mary Carroll | 21 | Daughter | Secretary | Pennsylvania |
| 34 | Victor C. Mosher | 36 | Head | Manager | Pennsylvania |
| 35 | Barbara Mosher | 30 | Wife | — | Pennsylvania |
| 36 | Barbara Mosher | 5 | Daughter | — | Pennsylvania |
| 37 | James Mosher | 3 | Son | — | Pennsylvania |
| 38 | Helen Popovitch | 21 | Servant | Servant | Pennsylvania |
| 39 | Helen Blila | 53 | Head | — | Pennsylvania |
| 40 | Jeanne Blila | 24 | Daughter | Stenographer | Pennsylvania |
Pedigree Summary
William + 1 sibling
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)