MP
Mary Pratt — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Mary Pratt across the 1930 and 1940 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 10-person household.
Age 4
b. ~1926
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Pratt |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Additional Details | |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1926 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Isabel Pratt | Daughter | — | 9 | ~1921 |
| Hattie Pratt | Daughter | — | 11 | ~1919 |
| Mary Pratt | Daughter | — | 4 | ~1926 |
| Madeline Pratt | Daughter | — | 2 | ~1928 |
| Randolph Pratt | Head | — | 37 | ~1893 |
| Bradley Pratt | Other | — | 60 | ~1870 |
| Lincoln Pratt | Son | — | 7 | ~1923 |
| James Pratt | Son | — | 5 | ~1925 |
| Roy Pratt | Son | — | 10 | ~1920 |
| Ida Pratt | Spouse | — | 30 | ~1900 |
Census Appearances
1930
Philadelphia, Pennsylvania
Daughter, age 4
Philadelphia, Pennsylvania · implied b. ~1926 — 10 household members
| Surname | Pratt |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Daughter, age 15
Philadelphia-County, Pennsylvania · implied b. ~1925 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pratt |
| Given Name | Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Highest Grade | No 6 |
| 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 Mary Pratt across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Pratt
Daughter · 1930 · age 4 · b. ~1926 · Pennsylvania
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Sibling
Hattie Pratt
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Isabel Pratt
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roy Pratt
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Madeline Pratt
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Pratt
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lincoln Pratt
Sibling · 1930 · age 7
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
25 people indexed on this census page (ia:1930:fifteenthcensus00reel2138:0264)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Brown | 25 | Son | Musician | Pennsylvania |
| 2 | Isaac Jr. Brown | 20 | Son | Waiter | Pennsylvania |
| 3 | Lillie Cathers | 36 | Sister-in-law | Maid | Maryland |
| 4 | Ellen Kelly | 28 | Lodger | Maid | Tennessee |
| 5 | Randolph Pratt | 37 | Head | Chauffeur | Virginia |
| 6 | Ida Pratt | 30 | Wife | — | Virginia |
| 7 | Hattie Pratt | 11 | Daughter | — | Pennsylvania |
| 8 | Roy Jr. Pratt | 10 | Son | — | Pennsylvania |
| 9 | Isabel Pratt | 9 | Daughter | — | Pennsylvania |
| 10 | Lincoln Pratt | 7 | Son | — | Pennsylvania |
| 11 | James Pratt | 5 | Son | — | Pennsylvania |
| 12 | Mary Pratt THIS PERSON | 4 | Daughter | — | Pennsylvania |
| 13 | Madeline Pratt | 2 | Daughter | — | Pennsylvania |
| 14 | Bradley Pratt | 60 | Mother | — | Virginia |
| 15 | Lillian Ward | 61 | Head | — | New Jersey |
| 16 | Simeon Davis | 59 | Head | Sheet Metal Worker | Pennsylvania |
| 17 | Vesta Davis | 56 | Wife | — | Pennsylvania |
| 18 | James Mcnancey | 34 | Head | Carpenter | Pennsylvania |
| 19 | Anna Mcnancey | 32 | Wife | — | Pennsylvania |
| 20 | Edward Mcnancey | 15 | Son | — | Pennsylvania |
| 21 | John Mcnancey | 6 | Son | — | Pennsylvania |
| 22 | Sarah Mcnancey | 1 | Daughter | — | Pennsylvania |
| 23 | Earl Ackerman | 38 | Lodger | Electrician | Pennsylvania |
| 24 | Thomas Norton | 44 | Lodger | Janitor | Pennsylvania |
| 25 | Here Ends The Enumeration Of Block No. 179 | None | — | — | — |
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)