WF
William Fitzpatrick — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this William Fitzpatrick 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: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Fitzpatrick |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh city |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Stock clerk |
| Industry | 5 & 10¢ store |
| Class of Worker | PW |
| Hours Worked | 65 |
| Income (1939) | 266 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Stock Clerk |
| Township / Ward | Pittsburgh City |
| 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 |
|---|---|---|---|---|
| Dolores Fitzpatrick | Daughter | — | 17 | ~1923 |
| William Fitzpatrick | Son | — | 19 | ~1921 |
| Mary Fitzpatrick | Daughter | — | 21 | ~1919 |
| Catherine Fitzpatrick | Spouse | — | 49 | ~1891 |
| Rita Fitzpatrick | Daughter | — | 22 | ~1918 |
| John Fitzpatrick | Son | — | 14 | ~1926 |
| John Fitzpatrick | Head | — | 51 | ~1889 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 9
Allegheny, Pennsylvania · implied b. ~1921 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzpatrick |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 19
Allegheny-County, Pennsylvania · implied b. ~1921 — 7 household members
| Surname | Fitzpatrick |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh city |
| 1935 Residence (County) | Allegheny |
| Occupation | Stock clerk |
| Industry | 5 & 10¢ store |
| Class of Worker | PW |
| Hours Worked | 65 |
| Income (1939) | 266 |
| Highest Grade | Hs 2 |
| 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 Fitzpatrick across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Fitzpatrick
Son · 1940 · age 19 · b. ~1921 · Pennsylvania
★ You are viewing this record
Sibling
Rita Fitzpatrick
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Fitzpatrick
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dolores Fitzpatrick
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Fitzpatrick
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 — 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-t0627-03675-00598)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Salvatore Grace Couch | 11 | Daughter | — | Pennsylvania |
| 2 | Audrey Couch | 9 | Daughter | — | Pennsylvania |
| 3 | Joan Couch | 7 | Daughter | — | Pennsylvania |
| 4 | Lois Couch | 6 | Daughter | — | Pennsylvania |
| 5 | Joseph Couch | 4 | Son | — | Pennsylvania |
| 6 | Gloria A. Couch | 1 | Daughter | — | Pennsylvania |
| 7 | Michael Crowley | 59 | Head | Lineman | Irish Free State |
| 8 | Mary Crowley | 23 | Daughter | — | Pennsylvania |
| 9 | Edgar Scharf | 43 | Head | Laborer | Pennsylvania |
| 10 | Sarah Scharf | 42 | Wife | — | New York |
| 11 | Walter Kroll | 42 | Head | Proprietor | Poland |
| 12 | Sophia Kroll | 36 | Wife | Proprietor | Pennsylvania |
| 13 | George Kroll | 16 | Son | — | Pennsylvania |
| 14 | Dolores Kroll | 14 | Daughter | — | Pennsylvania |
| 15 | Margaret Sweeney | 75 | Head | — | England |
| 16 | Mary Sweeney | 44 | Daughter | — | Pennsylvania |
| 17 | Frances Sweeney | 42 | Daughter | Ironer | Pennsylvania |
| 18 | Michael Sweeney | 40 | Son | Bartender | Pennsylvania |
| 19 | Michael Madden | 65 | Nephew | Laborer | England |
| 20 | John Fitzpatrick | 51 | Head | Custodian | Pennsylvania |
| 21 | Catherine Fitzpatrick | 49 | Wife | — | Pennsylvania |
| 22 | Rita Fitzpatrick | 22 | Daughter | Ironer | Pennsylvania |
| 23 | Mary Fitzpatrick | 21 | Daughter | Builder | Pennsylvania |
| 24 | William Fitzpatrick THIS PERSON | 19 | Son | Stock Clerk | Pennsylvania |
| 25 | Dolores Fitzpatrick | 17 | Daughter | — | Pennsylvania |
| 26 | John Fitzpatrick | 14 | Son | — | Pennsylvania |
| 27 | Charles A. Arnold | 73 | Head | — | Iowa |
| 28 | Mary M. Arnold | 65 | Wife | — | Pennsylvania |
| 29 | Lillian Washue | 61 | Sister-in-law | — | Pennsylvania |
| 30 | Millicent Washue | 56 | Sister-in-law | — | Illinois |
| 31 | Paul Holiday | 23 | Head | Shipper | Pennsylvania |
| 32 | George Holiday | 26 | Brother | Laborer | Pennsylvania |
| 33 | Mary Holiday | 18 | Sister | — | Pennsylvania |
| 34 | Esther Kine Holiday | 16 | Sister | — | Pennsylvania |
| 35 | John Johnston | 50 | Head | Plumber | Pennsylvania |
| 36 | Viola Johnston | 47 | Wife | — | Pennsylvania |
| 37 | John Johnston | 23 | Son | Assembler | Pennsylvania |
| 38 | Ralph Johnston | 20 | Son | Clerk | Pennsylvania |
| 39 | August Johnston | 17 | Son | — | Pennsylvania |
| 40 | Mary Jane Johnston | 15 | Daughter | — | Pennsylvania |
Search for William Fitzpatrick
All William Fitzpatrick Census Records Discover Fitzpatrick Family TreeAbout 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)