SC
Sarah Collins — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Sarah Collins across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 10-person household.
Age 19
b. ~1921
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Collins |
| Given Name | Sarah A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Coal & Coke Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 236 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Stenographer |
| Township / Ward | Pittsburgh |
| 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Sarah | Age | Birth yr |
|---|---|---|---|---|
| John Collins | Son | — | 10 | ~1930 |
| Sarah Collins | Daughter | — | 19 | ~1921 |
| Margaret Collins | Daughter | — | 22 | ~1918 |
| Joanne Collins | Daughter | — | 6 | ~1934 |
| James Collins | Son | — | 11 | ~1929 |
| Eleanor Collins | Daughter | — | 16 | ~1924 |
| James Collins | Head | — | 56 | ~1884 |
| Mary Collins | Spouse | — | 48 | ~1892 |
| Deane Collins | Son | — | 14 | ~1926 |
| Michael Collins | Son | — | 18 | ~1922 |
Census Appearances
1930
Allegheny, Pennsylvania
Daughter, age 9
Allegheny, Pennsylvania · implied b. ~1921 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Collins |
| Given Name | Sarah |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 19
Allegheny-County, Pennsylvania · implied b. ~1921 — 10 household members
| Surname | Collins |
| Given Name | Sarah A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | Stenographer |
| Industry | Coal & Coke Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 236 |
| 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 Sarah Collins across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Sarah Collins
Daughter · 1940 · age 19 · b. ~1921 · Pennsylvania
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Sibling
James Collins
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joanne Collins
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Collins
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Collins
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Collins
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Collins
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Deane Collins
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-t0627-03670-00395)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John J. Fricker | 41 | Head | Baker | Pennsylvania |
| 2 | Emily M. Fricker | 45 | Wife | — | Pennsylvania |
| 3 | John J. Jr. Fricker | 19 | Son | Laborer | Pennsylvania |
| 4 | Bertha Fricker | 17 | Daughter | — | Pennsylvania |
| 5 | Harold A. Fricker | 15 | Son | — | Pennsylvania |
| 6 | Raymond J. Fricker | 14 | Son | — | Pennsylvania |
| 7 | William J. Fricker | 13 | Son | — | Pennsylvania |
| 8 | Mildred M. Fricker | 9 | Daughter | — | Pennsylvania |
| 9 | George Schwartzmiller | 44 | Head | Policeman | Pennsylvania |
| 10 | Marcella Schwartzmiller | 41 | Wife | — | Pennsylvania |
| 11 | Imelda Schwartzmiller | 19 | Daughter | — | Pennsylvania |
| 12 | Norbert Schwartzmiller | 13 | Son | — | Pennsylvania |
| 13 | Regis Schwartzmiller | 8 | Son | — | Pennsylvania |
| 14 | Savin Pike | 71 | Head | — | Pennsylvania |
| 15 | Sarah Pike | 67 | Wife | — | Pennsylvania |
| 16 | Joseph Hoffman | 53 | Head | Tinner | Pennsylvania |
| 17 | Theresa Hoffman | 51 | Wife | — | Pennsylvania |
| 18 | Theresa Hoffman | 28 | Daughter | Clerk | Pennsylvania |
| 19 | Raymond Hoffman | 26 | Son | Shearman | Pennsylvania |
| 20 | John Hoffman | 23 | Son | Laborer | Pennsylvania |
| 21 | Daniel Hoffman | 21 | Son | Stock Boy | Pennsylvania |
| 22 | Marie Hoffman | 19 | Daughter | — | Pennsylvania |
| 23 | Helen Hoffman | 17 | Daughter | — | Pennsylvania |
| 24 | Robert Hoffman | 15 | Son | — | Pennsylvania |
| 25 | Edward Hoffman | 25 | Son | Butcher | Pennsylvania |
| 26 | James J. Collins | 56 | Head | Clerk | Pennsylvania |
| 27 | Mary Collins | 48 | Wife | — | Pennsylvania |
| 28 | Margaret Collins | 22 | Daughter | Operator | Pennsylvania |
| 29 | Sarah A. Collins THIS PERSON | 19 | Daughter | Stenographer | Pennsylvania |
| 30 | Michael J. Collins | 18 | Son | — | Pennsylvania |
| 31 | Eleanor Collins | 16 | Daughter | — | Pennsylvania |
| 32 | Deane J. Collins | 14 | Son | — | Pennsylvania |
| 33 | James J. Collins | 11 | Son | — | Pennsylvania |
| 34 | John P. Collins | 10 | Son | — | Pennsylvania |
| 35 | Joanne Collins | 6 | Daughter | — | Pennsylvania |
| 36 | James M. Hager | 72 | Head | Foreman | Canada-Eng |
| 37 | Mary Hager | 65 | Wife | — | Switzerland |
| 38 | Helen Limesy | 50 | Head | — | Pennsylvania |
| 39 | Helen Limesy | 27 | Daughter | Seamstress | Pennsylvania |
| 40 | William Limesy | 25 | Son | Stock Boy | Pennsylvania |
Related Census Records
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)