MK
Mary Klein — 1940 US Census Record
Model Tree available1940 United States Federal Census · New-York-County, New York
Our Model Tree links this Mary Klein across the 1920, 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed), with identified parents Jacob & Tila — first a head (b.~1891), then head of a 2-person household.
Age 49
b. ~1891
Female
Head
Born: Hungary
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | New-York-County, New York |
| Surname | Klein |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Widowed |
| Birthplace | Hungary |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | New York |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | 0 |
| Industry | 0 |
| Class of Worker | 0 |
| Income (1939) | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same house |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
| Occupation | 0 |
| Township / Ward | New York City |
| Est. Birth Year | ~1891 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Julia Klein | Daughter | — | 22 | ~1918 |
| Mary Klein | Head | — | 49 | ~1891 |
Census Appearances
1920
New York, …
Daughter, age 33
New York, New York · implied b. ~1887 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Klein |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Hungary |
| Year of Immigration | 1890 |
| Naturalization Status | Alien |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Hungary |
| Occupation | Saleswoman |
| Industry | Store |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Hungarian |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
1930
New York, …
Other, age 41
New York, New York · implied b. ~1889 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Klein |
| Given Name | Mary |
| Relationship to Head | Servant |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Single |
| Birthplace | Hungary |
| Naturalization Status | Naturalized |
| Year of Immigration | 1913 |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Hungary |
| Occupation | Cook |
| Industry | Private Fam |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Hungarian |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
1940
New-York-County, New …
Head, age 49
New-York-County, New York · implied b. ~1891 — 2 household members
| Surname | Klein |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Widowed |
| Birthplace | Hungary |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | New York |
| Naturalization Status | Naturalized |
| Occupation | 0 |
| Industry | 0 |
| Class of Worker | 0 |
| Income (1939) | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same house |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
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 Klein across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jacob Klein (~0.92 confidence) and mother Tila Klein (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jacob Klein
b. ~1860
Source father
● Household
· direct · ~0.92
Mother
Tila Klein
b. ~1863
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Klein
Head · 1940 · age 49 · b. ~1891 · New York
★ 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 — New-York-County, New York
Open full size
1940 US Federal Census — New-York-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02634-00602)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gladys Chorna | 20 | Wife | 0 | New York |
| 42 | Anna Mae Chorna | 1 | Daughter | — | New York |
| 43 | Harry Leib | 59 | Head | Butcher | Austria |
| 44 | Rose Leib | 50 | Wife | 0 | Hungary |
| 45 | Moe Leib | 23 | Son | Stock Clerk | New York |
| 46 | Florence Leib | 21 | Daughter | Clerk | New York |
| 47 | Gertrude Leib | 18 | Daughter | Floor Girl | New York |
| 48 | Leo Leib | 17 | Son | 0 | New York |
| 49 | Joseph Chorna | 30 | Head | Helper | New York |
| 50 | Wilma Chorna | 29 | Wife | 0 | New York |
| 51 | Mary Ann Chorna | 13 | Daughter | — | New York |
| 52 | Anna Chorna | 50 | Mother | 0 | Poland |
| 53 | Harry Rovinsky | 59 | Head | Operator | Russia |
| 54 | Becka Rovinsky | 53 | Wife | 0 | Austria |
| 55 | Max Rovinsky | 23 | Son | Driller | New York |
| 56 | Isidore Rovinsky | 20 | Son | Demonstrator | New York |
| 57 | Sam Koenig | 63 | Head | Barber | Austria |
| 58 | Hannie Koenig | 56 | Wife | 0 | Austria |
| 59 | Murray Koenig | 28 | Son | Salesman | New York |
| 60 | John Horodecki | 42 | Head | Window Cleaner | Austria |
| 61 | Mary Horodecki | 42 | Wife | 0 | Austria |
| 62 | Modice Horodecki | 12 | Daughter | — | New York |
| 63 | William Holowinsky | 43 | Head | Cook | Poland |
| 64 | Julia Holowinsky | 28 | Wife | 0 | New York |
| 65 | Gloria Holowinsky | 10 | Daughter | — | New York |
| 66 | Homa Bobrosky | 59 | Head | Presser | Russia |
| 67 | Ekaterina Bobrosky | 49 | Wife | Finisher | Russia |
| 68 | Olga Bobrosky | 17 | Daughter | 0 | New York |
| 69 | Abraham Simon | 49 | Head | Finisher | Russia |
| 70 | Pauline Simon | 43 | Wife | 0 | Russia |
| 71 | Hyman Simon | 26 | Son | Shipping Clerk | Russia |
| 72 | Shirley Simon | 12 | Daughter | — | New York |
| 73 | Bessie Simon | 10 | Daughter | — | New York |
| 74 | Benjamin Heitzner | 54 | Head | Waiter | Austria |
| 75 | Rose Heitzner | 42 | Wife | 0 | England |
| 76 | Morton Heitzner | 19 | Son | Mechanic | New York |
| 77 | Mildred Heitzner | 13 | Daughter | — | New York |
| 78 | Michael Heitzner | 5 | Son | — | New York |
| 79 | Mary Klein THIS PERSON | 49 | Head | 0 | Hungary |
| 80 | Julia Klein | 22 | Daughter | Packer | New York |
Pedigree Summary
Mary
Gen 1 · 2 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)