DC
Dorothy Cooper — 1930 US Census Record
Model Tree available1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Dorothy Cooper across the 1920, 1930 and 1940 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Amos & Oscar — first a daughter (b.~1917), then head of a 5-person household.
Age 13
b. ~1917
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Cooper |
| Given Name | Dorothy M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Natrona Heights Town |
| 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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Gladys Cooper | Daughter | — | 5 | ~1925 |
| Dorothy Cooper | Daughter | — | 13 | ~1917 |
| Pearl Cooper | Spouse | — | 39 | ~1891 |
| Oscar Cooper | Son | — | 10 | ~1920 |
| Oscar Cooper | Head | — | 40 | ~1890 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age 3
Allegheny, Pennsylvania · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Dorothy M. |
| Relationship to Head | Daughter |
| Sex | F |
| 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
Allegheny, Pennsylvania
Daughter, age 13
Allegheny, Pennsylvania · implied b. ~1917 — 5 household members
| Surname | Cooper |
| Given Name | Dorothy M |
| Relationship to Head | Daughter |
| Sex | F |
| 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
Allegheny-County, Pennsylvania
Other, age 22
Allegheny-County, Pennsylvania · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Doris |
| Relationship to Head | Step-daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Occupation | Nurse aid |
| Industry | School |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 226 |
| Highest Grade | Hs 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 Dorothy Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Amos Cooper (~0.92 confidence) and father Oscar Cooper (~0.92 confidence) and mother Mary Cooper (~0.92 confidence) and mother Pearl Cooper (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Amos Cooper
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Oscar Cooper
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Mary Cooper
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Pearl Cooper
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Cooper
Daughter · 1930 · age 13 · b. ~1917 · Pennsylvania
★ You are viewing this record
Sibling
Oscar Cooper
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Cooper
Sibling · 1930 · age 5
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
1930 US Federal Census — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1964:0860)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Rollins | 52 | Head | Miner | Pennsylvania |
| 2 | Della M Rollins | 50 | Wife | — | Pennsylvania |
| 3 | Darryl T Acre | 22 | Head | Laborer | Pennsylvania |
| 4 | Marie A Acre | 19 | Wife | — | Pennsylvania |
| 5 | Thomas R Acre | 1 | Son | — | Pennsylvania |
| 6 | Alner T Grossman | 42 | Head | Laborer | Pennsylvania |
| 7 | Gertrude B Grossman | 38 | Wife | — | Pennsylvania |
| 8 | Claron J Hockenberry | 54 | Head | Engine Tender | Missouri |
| 9 | Elsie H Hockenberry | 46 | Wife | — | Pennsylvania |
| 10 | Archie M Spencer | 30 | Head | Stockman | Pennsylvania |
| 11 | Anna E Spencer | 27 | Wife | — | Pennsylvania |
| 12 | Loretta M Spencer | 7 | Daughter | — | Pennsylvania |
| 13 | Leonard L Spencer | 5 | Son | — | Pennsylvania |
| 14 | Elmer H Guist | 28 | Head | Machinist | Pennsylvania |
| 15 | Cecelia K Guist | 26 | Wife | — | Pennsylvania |
| 16 | G Gordon Guist | 3 | Son | — | Pennsylvania |
| 17 | Peter H Guist | 67 | Head | Florist | Pennsylvania |
| 18 | Nancy Guist | 65 | Wife | — | Pennsylvania |
| 19 | Taylor J Bawn | 64 | Head | Gardner | Pennsylvania |
| 20 | Clara E Bawn | 60 | Wife | — | Pennsylvania |
| 21 | Lettie A Bawn | 40 | Daughter | — | Pennsylvania |
| 22 | Edward C Sr Ridgeley | 42 | Head | Roller | Pennsylvania |
| 23 | Edna M Ridgeley | 40 | Wife | — | Pennsylvania |
| 24 | Bernice L Ridgeley | 16 | Daughter | — | Pennsylvania |
| 25 | Edward C Jr Ridgeley | 14 | Son | — | Pennsylvania |
| 26 | Thomas Griffin | 65 | Head | — | Irish Free State |
| 27 | Catherine Griffin | 59 | Wife | — | England |
| 28 | Frank M Griffin | 30 | Son | Boiler Fireman | Pennsylvania |
| 29 | Ethel M Griffin | 24 | Daughter-in-law | — | Pennsylvania |
| 30 | Esther M Griffin | 6 | Gr Daughter | — | Pennsylvania |
| 31 | Catherine M Griffin | 2 | Gr Daughter | — | Pennsylvania |
| 32 | John J Griffin | 32 | Son | Pickling Dept | Pennsylvania |
| 33 | Beulah M Griffin | 32 | Daughter-in-law | — | Pennsylvania |
| 34 | Martha M Griffin | 9 | Gr Daughter | — | Pennsylvania |
| 35 | Beverly J Griffin | 1 | Gr Daughter | — | Pennsylvania |
| 36 | Jennie E Clemente | 50 | Head | — | Pennsylvania |
| 37 | David Clemente | 34 | Son | Accountant | Pennsylvania |
| 38 | Albert E Clemente | 27 | Son | Elec Engineer | Pennsylvania |
| 39 | Mary E Clemente | 25 | Daughter | Teacher | Pennsylvania |
| 40 | William T Evans | 88 | Father | — | Wales |
| 41 | Oscar J Sr Cooper | 40 | Head | Pass Heater | Pennsylvania |
| 42 | Pearl M Cooper | 39 | Wife | — | Pennsylvania |
| 43 | Dorothy M Cooper THIS PERSON | 13 | Daughter | — | Pennsylvania |
| 44 | Oscar J Jr Cooper | 10 | Son | — | Pennsylvania |
| 45 | Gladys M Cooper | 5 | Daughter | — | Pennsylvania |
| 46 | Fred W Tiemann | 63 | Head | Janitor | Germany |
| 47 | Katie A Tiemann | 59 | Wife | — | Pennsylvania |
| 48 | Betty F Tiemann | 26 | Daughter | Clerk | Pennsylvania |
| 49 | Edward Hazlett | 12 | Gr Nephew | — | Pennsylvania |
| 50 | Harrison F Jones | 29 | Head | Miner | Pennsylvania |
Pedigree Summary
Dorothy + 2 siblings
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 1930 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)