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Mary Larson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Delaware, Pennsylvania
Our Model Tree links this Mary Larson across the 1920 and 1930 US Censuses in Delaware, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1884), then head of a 10-person household.
Age 46
b. ~1884
Female
Spouse
Born: Poland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Delaware, Pennsylvania |
| Surname | Larson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Poland |
| Naturalization Status | First papers filed |
| Year of Immigration | 1913 |
| Age at First Marriage | 21 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Polish |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
| Township / Ward | Chester City |
| Est. Birth Year | ~1884 |
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 |
|---|---|---|---|---|
| Mary Larson | Daughter | — | 24 | ~1906 |
| Josephine Larson | Daughter | — | 9 | ~1921 |
| Sophie Larson | Daughter | — | 16 | ~1914 |
| Anna Larson | Daughter | — | 11 | ~1919 |
| Theodore Larson | Head | — | 53 | ~1877 |
| Theodore Larson | Son | — | 5 | ~1925 |
| Alex Larson | Son | — | 14 | ~1916 |
| Charles Larson | Son | — | 21 | ~1909 |
| Philip Larson | Son | — | 18 | ~1912 |
| Mary Larson | Spouse | — | 46 | ~1884 |
Census Appearances
Spouse, age 36
Delaware, Pennsylvania · implied b. ~1884 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Poland |
| Year of Immigration | 1907 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | No |
| Mother Tongue | Polish |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
1930
Delaware, Pennsylvania
Spouse, age 46
Delaware, Pennsylvania · implied b. ~1884 — 10 household members
| Surname | Larson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Poland |
| Naturalization Status | First papers filed |
| Year of Immigration | 1913 |
| Age at First Marriage | 21 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Polish |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
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 Larson across 2 US Census years (1920 and 1930) in Delaware, Pennsylvania, using XGBoost record linkage.
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This person
Anchor record
Mary Larson
Spouse · 1930 · age 46 · b. ~1884 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Delaware, Pennsylvania
Open full size
1930 US Federal Census — Delaware, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2029:1021)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alfred | 6 | son | None | Pennsylvania |
| 2 | Isabelley | 5 | daughter | None | Pennsylvania |
| 3 | Alice | 3 | daughter | None | Pennsylvania |
| 4 | Frank Ryasa | 45 | Head | Laborer | Poland |
| 5 | Josephine Ryasa | 40 | Wife | None | Poland |
| 6 | Victoria Ryasa | 16 | daughter | Spinning | Pennsylvania |
| 7 | Louise Ryasa | 15 | daughter | None | Pennsylvania |
| 8 | John Ryasa | 12 | son | None | Pennsylvania |
| 9 | Sophie Ryasa | 11 | daughter | None | Pennsylvania |
| 10 | Edward Ryasa | 9 | son | None | Pennsylvania |
| 11 | Helen Ryasa | 7 | daughter | None | Pennsylvania |
| 12 | Jane Ryasa | 5 | daughter | None | Pennsylvania |
| 13 | Stella Ryasa | 3 | daughter | None | Pennsylvania |
| 14 | Frank Ryasa | 0 | son | None | Pennsylvania |
| 15 | Frank Rayburn | 72 | Head | Laborer | Wisconsin |
| 16 | Mary Rayburn | 71 | Wife | None | Pennsylvania |
| 17 | Alex J Bolinski | 40 | Head | Laborer | Pennsylvania |
| 18 | Mary Bolinski | 38 | Wife | None | Pennsylvania |
| 19 | John S Bolinski | 15 | son | None | Pennsylvania |
| 20 | Helen Bolinski | 12 | daughter | None | Pennsylvania |
| 21 | Theodore Larson | 53 | Head | Laborer | Poland |
| 22 | Mary Larson THIS PERSON | 46 | Wife | None | Poland |
| 23 | Mary Larson | 24 | daughter | Spinning | Poland |
| 24 | Charles Larson | 21 | son | Laborer | Poland |
| 25 | Philip Larson | 18 | son | Helper | Poland |
| 26 | Sophie Larson | 16 | daughter | None | Pennsylvania |
| 27 | Alex Larson | 14 | son | None | Pennsylvania |
| 28 | Anna Larson | 11 | daughter | None | Pennsylvania |
| 29 | Josephine Larson | 9 | daughter | None | Pennsylvania |
| 30 | Theodore Larson | 5 | son | None | Pennsylvania |
| 31 | John Zelinski | 44 | Head | Meat Packing | Poland |
| 32 | Josephine Zelinski | 42 | Wife | None | Poland |
| 33 | Agatha Zelinski | 20 | daughter | Twisting | Pennsylvania |
| 34 | Katherine Zelinski | 15 | daughter | House Help | Pennsylvania |
| 35 | Mary Zelinski | 13 | daughter | None | Pennsylvania |
| 36 | Josephine Zelinski | 11 | daughter | None | Pennsylvania |
| 37 | Helen Zelinski | 10 | daughter | None | Pennsylvania |
| 38 | Helen Zelinski | 9 | daughter | None | Pennsylvania |
| 39 | Jane Zelinski | 7 | daughter | None | Pennsylvania |
| 40 | Anne Zelinski | 5 | daughter | None | Pennsylvania |
| 41 | Stella Zelinski | 3 | daughter | None | Pennsylvania |
| 42 | Victoria Zelinski | 0 | daughter | None | Pennsylvania |
| 43 | Joseph Kowalski | 50 | Head | Plumber | Poland |
| 44 | Mary Kowalski | 45 | Wife | None | Poland |
| 45 | John Kowalski | 18 | son | Mechanic | Pennsylvania |
| 46 | Josephine Kowalski | 17 | daughter | Cone Winding | Pennsylvania |
| 47 | Frank Kowalski | 16 | son | Errand Boy | Pennsylvania |
| 48 | Walter Kowalski | 14 | son | None | Pennsylvania |
| 49 | Peter Kowalski | 12 | son | None | Pennsylvania |
| 50 | Anthony Kowalski | 10 | son | None | Pennsylvania |
Related Census Records
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)