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Mary Martinez — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Mary Martinez across the 1930 and 1940 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1906), then head of a 9-person household.
Age 24
b. ~1906
Female
Daughter
Born: Costa Rica
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Martinez |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Costa Rica |
| Naturalization Status | Alien |
| Year of Immigration | 1917 |
| Age at First Marriage | 22 |
| Father's Birthplace | Costa Rica |
| Mother's Birthplace | Costa Rica |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | Spanish |
| Birthplace (normalized) | costa rica |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1906 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Vincent Martinez | Other | — | 33 | ~1897 |
| William Mendez | Son | — | 13 | ~1917 |
| Anita Mendez | Other | — | ~1930 | |
| Marian Martinez | Other | — | 1 | ~1929 |
| Rose Mendez | Daughter | — | 10 | ~1920 |
| Manuel Mendez | Head | — | 38 | ~1892 |
| Charles Mendez | Son | — | 17 | ~1913 |
| Mary Martinez | Daughter | — | 24 | ~1906 |
| Frances Mendez | Other | — | 18 | ~1912 |
Census Appearances
1930
Philadelphia, Pennsylvania
Daughter, age 24
Philadelphia, Pennsylvania · implied b. ~1906 — 9 household members
| Surname | Martinez |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Costa Rica |
| Naturalization Status | Alien |
| Year of Immigration | 1917 |
| Age at First Marriage | 22 |
| Father's Birthplace | Costa Rica |
| Mother's Birthplace | Costa Rica |
| Can Read/Write | Yes |
| Mother Tongue | Spanish |
| Birthplace (normalized) | costa rica |
1940
Philadelphia-County, Pennsylvania
Spouse, age 34
Philadelphia-County, Pennsylvania · implied b. ~1906 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Maria |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Costa Rica |
| 1935 Residence (City) | Phila |
| 1935 Residence (County) | Phila |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birthplace (normalized) | costa rica |
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 Martinez across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Martinez
Daughter · 1930 · age 24 · b. ~1906 · Pennsylvania
★ You are viewing this record
Sibling
Charles Mendez
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Mendez
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mendez
Sibling · 1930 · age 13
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
47 people indexed on this census page (ia:1930:fifteenthcensus00reel2100:1004)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Manuel Mendez | 38 | Head | — | Costa Rica |
| 52 | William Mendez | 13 | Son | — | Costa Rica |
| 53 | Rose Mary Mendez | 10 | Daughter | — | Pennsylvania |
| 54 | Vincent Martinez | 33 | Son-in-law | Machinist | Cuba |
| 55 | Mary Martinez THIS PERSON | 24 | Daughter | — | Costa Rica |
| 56 | Marian Martinez | 1 | Granddaughter | — | Pennsylvania |
| 57 | Charles Mendez | 17 | Son | Laborer | Costa Rica |
| 58 | Frances Mendez | 18 | Daughter-in-law | — | Pennsylvania |
| 59 | Anita Mendez | 0 | Granddaughter | — | Pennsylvania |
| 60 | Frederick Booth | 45 | Head | Cleaner Hand | Pennsylvania |
| 61 | Rachel Booth | 35 | Wife-H | — | Pennsylvania |
| 62 | Frederick Jr. Booth | 17 | Son | Packer | Pennsylvania |
| 63 | Eleanor Booth | 15 | Daughter | — | Pennsylvania |
| 64 | Ethel Booth | 11 | Daughter | — | Pennsylvania |
| 65 | Dolly Booth | 8 | Daughter | — | Pennsylvania |
| 66 | Frank Williams | 36 | Lodger | Chauffeur | Pennsylvania |
| 67 | Jacob Williams | 36 | Lodger | Carpenter | Pennsylvania |
| 68 | Michael Pillo | 42 | Head | Painter | Italy |
| 69 | Josephine Pillo | 37 | Wife-H | — | Pennsylvania |
| 70 | Millie Pillo | 18 | Daughter | Sewing | Pennsylvania |
| 71 | Joseph Pillo | 14 | Son | — | Pennsylvania |
| 72 | James Fiore | 64 | Head | Street Cleaner | Italy |
| 73 | Ida Fiore | 64 | Wife-H | — | Italy |
| 74 | James Jr. Fiore | 27 | Son | Pressman | Italy |
| 75 | William Bullman | 55 | Head | Plasterer | Pennsylvania |
| 76 | Ida Bullman | 53 | Wife-H | — | Pennsylvania |
| 77 | Stanley Bullman | 15 | Son | — | Pennsylvania |
| 78 | Edward Bullman | 21 | Son | — | Pennsylvania |
| 79 | William Bullman | 24 | Head | Auto Setter | Pennsylvania |
| 80 | Elizabeth Bullman | 24 | Wife | Carpenter | Pennsylvania |
| 81 | Ruth Bullman | 2 | Son | — | Pennsylvania |
| 82 | William Hallman | 11 | Nephew | — | Pennsylvania |
| 83 | Benjamin Manges | 62 | Head | Carpenter | Pennsylvania |
| 84 | Ella Manges | 52 | Wife | — | Pennsylvania |
| 85 | Elizabeth Stuart | 40 | Department Store | Bookkeeper | Pennsylvania |
| 86 | Lillian Stuart | 38 | Daughter | Dressmaker | Pennsylvania |
| 87 | Amelia G. Hargula | 60 | Head | — | Pennsylvania |
| 88 | Edward C. Hargula | 55 | Brother | Shipping Clerk | Pennsylvania |
| 89 | Otto Lineman | 61 | Head | Mechanic | Germany |
| 90 | Elizabeth Lineman | 56 | Wife | — | Germany |
| 91 | Marie Lineman | 31 | Daughter | Weaver | Pennsylvania |
| 92 | Cecelia Lineman | 22 | Daughter | Stenographer | Pennsylvania |
| 93 | Caly Lineman | 20 | Daughter | Stenographer | Pennsylvania |
| 94 | Gertrude Lineman | 17 | Son | Stocker | Pennsylvania |
| 95 | Elizabeth C. Lineman | 14 | Daughter | — | Pennsylvania |
| 96 | Alfred B. Myers | 29 | Head | Salesman | Pennsylvania |
| 97 | Thomas Myers | 30 | Wife-H | Trimmer | 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)