MF
Mary Frederick — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Carbon, Pennsylvania
Our Model Tree links this Mary Frederick across the 1920 and 1930 US Censuses in Carbon, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1911), then head of a 6-person household.
Age 19
b. ~1911
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Carbon, Pennsylvania |
| Surname | Frederick |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Winder |
| Industry | Silk Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Winder |
| Township / Ward | Lansford Borough |
| Est. Birth Year | ~1911 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Leo Frederick | Son | — | 24 | ~1906 |
| Bessie Frederick | Spouse | — | 45 | ~1885 |
| Margaret Frederick | Daughter | — | 16 | ~1914 |
| Michael Frederick | Head | — | 65 | ~1865 |
| Helen Frederick | Daughter | — | 12 | ~1918 |
| Mary Frederick | Daughter | — | 19 | ~1911 |
Census Appearances
1920
Carbon, Pennsylvania
Daughter, age 9
Carbon, Pennsylvania · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frederick |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Carbon, Pennsylvania
Daughter, age 19
Carbon, Pennsylvania · implied b. ~1911 — 6 household members
| Surname | Frederick |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Winder |
| Industry | Silk Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Frederick across 2 US Census years (1920 and 1930) in Carbon, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Frederick
Daughter · 1930 · age 19 · b. ~1911 · Pennsylvania
★ You are viewing this record
Sibling
Margaret Frederick
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Frederick
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Frederick
Sibling · 1930 · age 24
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 — Carbon, Pennsylvania
Open full size
1930 US Federal Census — Carbon, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2014:0935)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John Gibbon | 4 | — | — | Pennsylvania |
| 52 | John Gremecik | 43 | Head | Laborer | Czechoslovakia |
| 53 | Gertrude Gremecik | 27 | Wife | — | Pennsylvania |
| 54 | Michael Vendesh | 45 | Head | Miner | Slovakia |
| 55 | Anna Vendesh | 38 | Wife | — | Pennsylvania |
| 56 | Mary A. Vendesh | 20 | Daughter | — | Pennsylvania |
| 57 | John Vendesh | 19 | Son | Laborer | Pennsylvania |
| 58 | Helen A. Vendesh | 16 | Daughter | Packer | Pennsylvania |
| 59 | Anna Vendesh | 13 | Daughter | — | Pennsylvania |
| 60 | Margaret Vendesh | 12 | Daughter | — | Pennsylvania |
| 61 | Albert Vendesh | 10 | Son | — | Pennsylvania |
| 62 | George Vendesh | 9 | Son | — | Pennsylvania |
| 63 | Edward Vendesh | 7 | Son | — | Pennsylvania |
| 64 | Michael Vendesh | 5 | Son | — | Pennsylvania |
| 65 | Bernadine Vendesh | 1 | Daughter | — | Pennsylvania |
| 66 | Michael Pruvignak | 43 | Head | Laborer | Czechoslovakia |
| 67 | Elizabeth Pruvignak | 43 | Wife | — | Czechoslovakia |
| 68 | John A. Pruvignak | 20 | Son | Trace | Pennsylvania |
| 69 | Michael A. Pruvignak | 18 | Son | Clerk-Store | Pennsylvania |
| 70 | Helen Pruvignak | 16 | Daughter | — | Pennsylvania |
| 71 | Joseph Pruvignak | 12 | Son | — | Pennsylvania |
| 72 | Joseph Jakubco | 35 | Head | Machinist | Czechoslovakia |
| 73 | Mary Jakubco | 35 | Wife | — | Czechoslovakia |
| 74 | Margaret Jakubco | 14 | Daughter | — | Pennsylvania |
| 75 | Mary Jakubco | 12 | Daughter | — | Pennsylvania |
| 76 | Frances Jakubco | 9 | Daughter | — | Pennsylvania |
| 77 | Rose Jakubco | 4 | Daughter | — | Pennsylvania |
| 78 | Josephine Jakubco | 3 | Son | — | Pennsylvania |
| 79 | Frank Cougludy | 57 | Head | Miner | Poland |
| 80 | Lena Cougludy | 45 | Wife | — | Poland |
| 81 | Mary Cougludy | 19 | Daughter | Seamstress | Pennsylvania |
| 82 | Viola Cougludy | 17 | Daughter | Seamstress | Pennsylvania |
| 83 | Michael Cougludy | 15 | Son | — | Pennsylvania |
| 84 | Joseph Cougludy | 12 | Son | — | Pennsylvania |
| 85 | Blanche Cougludy | 10 | Daughter | — | Pennsylvania |
| 86 | Edward Cougludy | 6 | Son | — | Pennsylvania |
| 87 | Mary Reese | 75 | Head | — | Wales |
| 88 | Edward H. Reese | 50 | Son | Bookkeeper | Wales |
| 89 | Daniel Harris | 73 | Head | — | Wales |
| 90 | Mary A. Harris | 66 | Wife | — | Wales |
| 91 | Michael Frederick | 65 | Head | Janitor | Pennsylvania |
| 92 | Bessie Frederick | 45 | Wife | — | Pennsylvania |
| 93 | Mary Frederick THIS PERSON | 19 | Daughter | Winder | Pennsylvania |
| 94 | Margaret Frederick | 16 | Daughter | Spinner | Pennsylvania |
| 95 | Helen Frederick | 12 | Daughter | — | Pennsylvania |
| 96 | Leo Frederick | 24 | Son | Laborer | Pennsylvania |
| 97 | Mary Scharf | 72 | Head | — | Pennsylvania |
| 98 | Ralph R. Cook | 54 | Boarder | — | Pennsylvania |
| 99 | Michael Serena | 42 | Head | Miner | Czechoslovakia |
| 100 | Carolina Serena | 39 | Wife | — | Czechoslovakia |
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)