MC
Martha Cooper — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Martha Cooper across the 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 6-person household.
Age 12
b. ~1918
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Cooper |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Delaware |
| Additional Details | |
| Occupation | Student |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Student |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1918 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Martha Cooper | Daughter | — | 12 | ~1918 |
| Marian Cooper | Daughter | — | 15 | ~1915 |
| John Cooper | Head | — | 44 | ~1886 |
| Betty Cooper | Daughter | — | 8 | ~1922 |
| Dorothy Cooper | Daughter | — | 19 | ~1911 |
| Bria Cooper | Other | — | 42 | ~1888 |
Census Appearances
1920
Philadelphia, Pennsylvania
Daughter, age 1
Philadelphia, Pennsylvania · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Martha |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Delaware |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Daughter, age 12
Philadelphia, Pennsylvania · implied b. ~1918 — 6 household members
| Surname | Cooper |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Delaware |
| Occupation | Student |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| 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 Martha Cooper across 2 US Census years (1920 and 1930) in Philadelphia, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Cooper
Daughter · 1930 · age 12 · b. ~1918 · Pennsylvania
★ You are viewing this record
Sibling
Marian Cooper
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Cooper
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Cooper
Sibling · 1930 · age 19
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 — Philadelphia, Pennsylvania
Open full size
1930 US Federal Census — Philadelphia, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2104:0587)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Catherine Conway | 15 | Daughter | — | Pennsylvania |
| 52 | Rachael Conway | 14 | Daughter | — | Pennsylvania |
| 53 | Patrick Jr. Conway | 13 | Son | — | Pennsylvania |
| 54 | Daniel Conway | 11 | Son | — | Pennsylvania |
| 55 | Cornelius Conway | 9 | Son | — | Pennsylvania |
| 56 | Margaret Conway | 8 | Daughter | — | Pennsylvania |
| 57 | Anna Conway | 6 | Daughter | — | Pennsylvania |
| 58 | Charles Conway | 3 | Son | — | Pennsylvania |
| 59 | Michael Cavanaugh | 28 | Boarder | Gardener | Ireland |
| 60 | Patrick Cavanaugh | 26 | Boarder | Gardener | Ireland |
| 61 | Dennis Cavanaugh | 24 | Cousin | Gardener | Ireland |
| 62 | Michael Dougherty | 24 | Boarder | Gardener | Ireland |
| 63 | William Sykes | 70 | Head | — | Pennsylvania |
| 64 | Joseph Sykes | 46 | Son | Fireman | Pennsylvania |
| 65 | Jessie Sykes | 44 | Daughter | Dressmaker | Pennsylvania |
| 66 | Bertram H. Rogers | 52 | Head | Treasurer | Pennsylvania |
| 67 | Helen W. Rogers | 46 | Wife-H | Home Maker | Pennsylvania |
| 68 | Nancy Rogers | 17 | Daughter | Student | Pennsylvania |
| 69 | Helen Louise Rogers | 11 | Daughter | Student | Pennsylvania |
| 70 | Thomas J. Fitzgerald | 69 | Head | Retired | Pennsylvania |
| 71 | Ellen Fitzgerald | 63 | Wife-H | — | Pennsylvania |
| 72 | James J. Mccormick | 68 | Head | Accountant | Pennsylvania |
| 73 | Kathryn A. Mccormick | 42 | Wife-H | — | Pennsylvania |
| 74 | Winifred Mccormick | 11 | Daughter | Student | Pennsylvania |
| 75 | John Cooper | 44 | Head | Secretary | Pennsylvania |
| 76 | Bria Cooper | 42 | Wife-H | — | Delaware |
| 77 | Dorothy Cooper | 19 | Daughter | Hairdresser | Pennsylvania |
| 78 | Marian Cooper | 15 | Daughter | Student | Pennsylvania |
| 79 | Martha Cooper THIS PERSON | 12 | Daughter | Student | Pennsylvania |
| 80 | Betty A. Cooper | 8 | Daughter | — | Pennsylvania |
| 81 | Balthasar Gerg | 60 | Head | Baker | Germany |
| 82 | Teresa Gerg | 48 | Wife-H | Home Maker | Germany |
| 83 | John Gerg | 25 | Son | Mechanic | Pennsylvania |
| 84 | Margaret Gerg | 19 | Daughter | Asst. Baker | Pennsylvania |
| 85 | Marie Gerg | 17 | Daughter | Student | Pennsylvania |
| 86 | Amiel Gerg | 15 | Son | Student | Pennsylvania |
| 87 | Helen Gerg | 12 | Daughter | Student | Pennsylvania |
| 88 | Sophie Gerg | 8 | Daughter | — | Pennsylvania |
| 89 | Teresa Gerg | 5 | Daughter | — | Pennsylvania |
| 90 | Helen Gerg | 3 | Daughter | — | Pennsylvania |
| 91 | Harvey Michener | 72 | Head | Retired | Pennsylvania |
| 92 | Kathryn Michener | 59 | Wife-H | Home Maker | Pennsylvania |
| 93 | William Sackman | 56 | Head | Salesman | Pennsylvania |
| 94 | Anna Sackman | 27 | Daughter | — | Pennsylvania |
| 95 | Earl Whiting | 36 | Head | Foreman | Pennsylvania |
| 96 | Helen Whiting | 20 | Wife-H | Home Maker | Pennsylvania |
| 97 | Dorothy Whiting | 1 | Daughter | — | Pennsylvania |
| 98 | Alonzo Smith | 67 | Head | Carpenter | Pennsylvania |
| 99 | Lizzie Smith | 62 | Wife-H | — | Ohio |
| 100 | Cooper J. Smith | 22 | Son | Clerk | Pennsylvania |
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)