MC
Mary Clarke — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Mary Clarke across the 1930 and 1940 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1905), then head of a 8-person household.
Age 25
b. ~1905
Female
Daughter
Born: Penna
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Clarke |
| Given Name | Mary R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | W. Ireland |
| Mother's Birthplace | W. Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
| Township / Ward | City Of Philadelphia |
| Est. Birth Year | ~1905 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Joseph Gale | Other | — | 26 | ~1904 |
| William Clarke | Head | — | 55 | ~1875 |
| Lillian Byrne | Other | — | 4 | ~1926 |
| Evelyn Clarke | Daughter | — | 23 | ~1907 |
| Sara Clarke | Spouse | — | 52 | ~1878 |
| William Clarke | Son | — | 21 | ~1909 |
| Mary Clarke | Daughter | — | 25 | ~1905 |
| Thomas Clarke | Son | — | 18 | ~1912 |
Census Appearances
1930
Philadelphia, Pennsylvania
Daughter, age 25
Philadelphia, Pennsylvania · implied b. ~1905 — 8 household members
| Surname | Clarke |
| Given Name | Mary R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | W. Ireland |
| Mother's Birthplace | W. Ireland |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1940
Philadelphia-County, Pennsylvania
Daughter, age 35
Philadelphia-County, Pennsylvania · implied b. ~1905 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clarke |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Widowed |
| Birthplace | Penna. |
| 1935 Residence (City) | PHILADELPHIA CITY |
| 1935 Residence (County) | PHILADELPHIA |
| Occupation | File Clerk |
| Industry | Insurance Co. |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 900 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
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 Clarke across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Clarke
Daughter · 1930 · age 25 · b. ~1905 · Pennsylvania
★ You are viewing this record
Sibling
Evelyn Clarke
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Clarke
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Clarke
Sibling · 1930 · 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
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:fifteenthcensus00reel2137:0341)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mildred Smith | 19 | Daughter | Stenographer | Penna |
| 2 | Frank H. Smith | 36 | Boarder | Manufacturer | Penna |
| 3 | William F. Clarke | 55 | Head | Carpenter | W. Ireland |
| 4 | Sara A. Clarke | 52 | Wife | — | W. Ireland |
| 5 | Mary R. Clarke THIS PERSON | 25 | Daughter | — | Penna |
| 6 | Evelyn G. Clarke | 23 | Daughter | Maid | Penna |
| 7 | William J. Clarke | 21 | Son | — | Penna |
| 8 | Thomas E. Clarke | 18 | Son | — | Penna |
| 9 | Joseph Gale | 26 | Boarder | Laborer | W. Ireland |
| 10 | Lillian Byrne | 4 | Boarder | — | Penna |
| 11 | Samuel Tully | 34 | Head | Fireman | W. Ireland |
| 12 | Sara J. Tully | 34 | Wife | — | W. Ireland |
| 13 | Elizabeth L. Tully | 3 | Daughter | — | Penna |
| 14 | John Tully | 1 | Son | — | Penna |
| 15 | Thomas J. Ratigan | 26 | Boarder | Helper | W. Ireland |
| 16 | William Vance | 52 | Boarder | Helper | W. Ireland |
| 17 | Joseph Duffery | 36 | Boarder | Helper | W. Ireland |
| 18 | Viola B. Boyd | 17 | Niece | Clerk | Penna |
| 19 | Raymond R. Lodge | 43 | Head | Florist | Penna |
| 20 | Clara A. Lodge | 35 | Wife | — | Penna |
| 21 | Helen R. Lodge | 17 | Daughter | Stenographer | Penna |
| 22 | Raymond R. Jr. Lodge | 13 | Son | — | Penna |
| 23 | William Schwer | 70 | Head | Glazier | Penna |
| 24 | Margaret E. Schwer | 66 | Wife | — | Penna |
| 25 | E. Leon Raymond | 27 | Boarder | Assistant | Penna |
| 26 | Robert B. Westerman | 39 | Head | Salesman | Penna |
| 27 | Elizabeth G. Westerman | 39 | Wife | — | New Jersey |
| 28 | Verna M. Westerman | 16 | Daughter | Folder | Penna |
| 29 | Robert H. Westerman | 11 | Son | — | Penna |
| 30 | Margaret E. Westerman | 9 | Daughter | — | Penna |
| 31 | Charles B. Hanna | 51 | Head | Electrician | Penna |
| 32 | Ella Hanna | 49 | Wife | — | Penna |
| 33 | Edward C. Hanna | 18 | Son | Clerk | Penna |
| 34 | Josephine A. Colgan | 72 | Head | — | Penna |
| 35 | August Luttgen | 69 | Boarder | Retired | Germany |
| 36 | Joseph Koral | 21 | Boarder | Laborer | Russia |
| 37 | Albert Balca | 21 | Boarder | Mixer | New Jersey |
| 38 | Alexander Karpulky | 20 | Boarder | Laborer | Russia |
| 39 | Catherine Summa | 65 | Head | — | Penna |
| 40 | Charles S. De Beche | 43 | Head | Operator | Penna |
| 41 | Margaret J. De Beche | 45 | Wife | — | Connecticut |
| 42 | John Q. De Beche | 25 | Son | Electrician | Penna |
| 43 | Charles E. De Beche | 24 | Son | Electrician | Penna |
| 44 | Katherine Mughan | 60 | Head | — | Germany |
| 45 | Raymond R. Mughan | 31 | Son | Clerk | Penna |
| 46 | Anna M. Mughan | 30 | Daughter-in-law | — | Penna |
| 47 | John R. Mughan | 2 | Grandson | — | Penna |
| 48 | William J. Emery | 62 | Boarder | Salesman | Penna |
| 49 | Louis G. Phelan | 56 | Head | Operator | Penna |
| 50 | Mary Phelan | 53 | Wife | — | France |
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)