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Catherine Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Catherine Martin across the 1910, 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Julia & Stanley — first a daughter (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Female
Daughter
Born: Pennsylvania
Divorced
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Martin |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Divorced |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Sharpsburg Boro |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Sharpsburg Boro |
| Est. Birth Year | ~1909 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Catherine | Age | Birth yr |
|---|---|---|---|---|
| Julia Grzybowski | Spouse | — | 67 | ~1873 |
| Catherine Martin | Daughter | — | 31 | ~1909 |
| Stanley Grzybowski | Head | — | 67 | ~1873 |
Census Appearances
1910
Allegheny, Pennsylvania
Daughter, age
Allegheny, Pennsylvania · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Daughter, age 11
Allegheny, Pennsylvania · implied b. ~1909 — 15 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| 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
Allegheny, Pennsylvania
Daughter, age 21
Allegheny, Pennsylvania · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Catherine W. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Scotland |
| Occupation | Stenographer |
| Industry | Garage |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 31
Allegheny-County, Pennsylvania · implied b. ~1909 — 3 household members
| Surname | Martin |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Divorced |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Sharpsburg Boro |
| 1935 Residence (County) | Allegheny |
| Income (1939) | 0 |
| 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 Catherine Martin across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Julia Grzybowski (~0.92 confidence) and father Stanley Grzybowski (~0.92 confidence) and father Thomas Curran (~0.92 confidence) and mother Sophia Curran (~0.92 confidence) and father Clarence Martin (~0.92 confidence) and mother Catherine Martin (~0.92 confidence) and mother Mary Martin (~0.92 confidence). The pedigree spans 1 generation with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Julia Grzybowski
b. ~1873
Source mother
● Household
· direct · ~0.92
Father
Stanley Grzybowski
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Thomas Curran
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Sophia Curran
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
Clarence Martin
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Catherine Martin
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Mary Martin
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Catherine Martin
Daughter · 1940 · age 31 · b. ~1909 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
31 people indexed on this census page (nara:1940:m-t0627-03417-00448)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Eva Jankowski | 58 | Wife | — | Poland |
| 2 | John Jankowski | 33 | Son | Blacksmith Helper | Pennsylvania |
| 3 | Antoinette Jankowski | 23 | Daughter | — | Pennsylvania |
| 4 | Felix Porteappo | 48 | Head | Merchant | Italy |
| 5 | Rose Porteappo | 40 | Wife | — | New York |
| 6 | Marie Porteappo | 20 | Daughter | — | Pennsylvania |
| 7 | Rose Offuro | 63 | Mother in law | — | Italy |
| 8 | Nicola Volante | 57 | Lodger | Watchman | Italy |
| 9 | John J Mccooney | 57 | Head | Motorman | Maryland |
| 10 | Annie Mccooney | 59 | Wife | — | Maryland |
| 11 | Francis Mccooney | 28 | Son | Bell Hop | Pennsylvania |
| 12 | William Mccooney | 30 | Son | Bell Hop | Pennsylvania |
| 13 | Regis Mccooney | 24 | Son | Bell Hop | Pennsylvania |
| 14 | Stanley Grzybowski | 67 | Head | Merchant | Poland |
| 15 | Julia Grzybowski | 67 | Wife | — | Poland |
| 16 | Catherine Martin THIS PERSON | 31 | Daughter | — | Pennsylvania |
| 17 | James Ryan | 33 | Head | Millwright | Pennsylvania |
| 18 | Sophia Ryan | 30 | Wife | — | Pennsylvania |
| 19 | Rita Ryan | 9 | Daughter | — | Pennsylvania |
| 20 | Ruth Ryan | 1 | Daughter | — | Pennsylvania |
| 21 | Louise Kremer | 33 | Head | Stenographer | Pennsylvania |
| 22 | Oliva Kremer | 29 | Sister | Stenographer | Pennsylvania |
| 23 | Anthony Kremer | 26 | Brother | Inspector | Pennsylvania |
| 24 | Clara Grunenwald | 52 | Head | — | Pennsylvania |
| 25 | Mary Grunenwald | 27 | Daughter | Note Clerk | Pennsylvania |
| 26 | Francis Grunenwald | 24 | Son | Clerk | Pennsylvania |
| 27 | Fred Linder | 38 | Head | Meter Inspector | Pennsylvania |
| 28 | Anna Linder | 38 | Wife | — | Pennsylvania |
| 29 | Gertrude Linder | 13 | Daughter | — | Pennsylvania |
| 30 | Dolores Linder | 11 | Daughter | — | Pennsylvania |
| 31 | Fred Jr Linder | 9 | Daughter | — | Pennsylvania |
Pedigree Summary
Catherine
Gen 1 · 7 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)