JM
John Mack — 1940 US Census Record
Model Tree available1940 United States Federal Census · Queens-County, New York
Our Model Tree links this John Mack across the 1920, 1930 and 1940 US Censuses in Queens-County, New York (XGBoost, ~Confirmed), with identified parents John & Margaret — first a head (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Queens-County, New York |
| Surname | Mack |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Queens |
| Additional Details | |
| Occupation | Clerk-Delivery |
| Industry | Life Insurance |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 66 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Clerk-Delivery |
| Township / Ward | New York City |
| Est. Birth Year | ~1910 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Rose Mack | Daughter | — | 2 | ~1938 |
| John Mack | Head | — | 30 | ~1910 |
| Gladys Mack | Spouse | — | 30 | ~1910 |
Census Appearances
1920
Bronx, New …
Son, age 10
Bronx, New York · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mack |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Bronx, New …
Son, age 20
Bronx, New York · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mack |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | Massachusetts |
| Occupation | Clerk |
| Industry | Insurance |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Queens-County, New …
Head, age 30
Queens-County, New York · implied b. ~1910 — 3 household members
| Surname | Mack |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Queens |
| Occupation | Clerk-Delivery |
| Industry | Life Insurance |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 66 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 John Mack across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Mack (~0.92 confidence) and mother Margaret Mack (~0.92 confidence) and mother Margaret Mack (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Mack
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Margaret Mack
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Margaret Mack
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mack
Head · 1940 · age 30 · b. ~1910 · 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 — Queens-County, New York
Open full size
1940 US Federal Census — Queens-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02721-00183)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dorothy Sara | 22 | Wife | — | New York |
| 42 | William Sara | 45 | Head | Supt | New York |
| 43 | Josephine Sara | 43 | Wife | — | Czechoslovakia |
| 44 | William Jr Sara | 13 | Son | — | New York |
| 45 | Charles Weiss | 68 | Father in law | — | Austria |
| 46 | Mary Weiss | 62 | Mother in law | — | Czechoslovakia |
| 47 | Irving Winkler | 76 | Head | Tailor | Romania |
| 48 | Winkler | 52 | Wife | — | Romania |
| 49 | Louis Winkler | 20 | Son | Tailor | New York |
| 50 | Israel Handelsman | 43 | Head | Operator | Russia |
| 51 | Tillie Handelsman | 35 | Wife | — | Russia |
| 52 | Jacob Kastin | 47 | Brother in law | Partner | Russia |
| 53 | Dora Kastin | 38 | Sister in law | — | Romania |
| 54 | Harold L Kastin | 3 | Nephew | — | New York |
| 55 | Sarah Muller | 54 | Head | Seamstress | Hungary |
| 56 | Lillian Muller | 16 | Daughter | — | New York |
| 57 | Alexandria Stevenson | 30 | Lodger | Counter Girl | Venezuela |
| 58 | Robert Gallagher | 31 | Head | Taxi Driver | New York |
| 59 | Martha Gallagher | 27 | Wife | — | New York |
| 60 | Grace Gallagher | 2 | Daughter | — | New York |
| 61 | Regina Wolf | 64 | Head | Dressmaker | Hungary |
| 62 | Hugo Billig | 49 | Lodger | Salesman | Hungary |
| 63 | August Pannasch | 30 | Head | Apprentice Printer | New York |
| 64 | Josephine Pannasch | 27 | Wife | — | Eire |
| 65 | Joseph Pannasch | 1 | Son | — | New York |
| 66 | Charles Vokoun | 36 | Head | Automobile Mechanic | Czechoslovakia |
| 67 | Mary Vokoun | 40 | Wife | — | Czechoslovakia |
| 68 | Gloria Vokoun | 13 | Daughter | — | New York |
| 69 | Morris Bolitzer | 58 | Head | Checker | Russia |
| 70 | Lena Bolitzer | 55 | Wife | — | Romania |
| 71 | Ida Bolitzer | 25 | Daughter | Bookkeeper | New York |
| 72 | John Mack THIS PERSON | 30 | Head | Clerk-Delivery | New York |
| 73 | Gladys Mack | 30 | Wife | — | New York |
| 74 | Rose M Mack | 2 | Daughter | — | New York |
| 75 | Abraham Ringe | 27 | Head | Mechanic Class | New York |
| 76 | Irene Ringe | 26 | Wife | — | New York |
| 77 | Alexander Ringe | 7 | Son | — | New York |
| 78 | Marlene Ringe | 3 | Daughter | — | New York |
| 79 | Thomas Hastings | 46 | Head | Bartender | New York |
| 80 | Elizabeth Hastings | 52 | Wife | — | England |
Pedigree Summary
John
Gen 1 · 3 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)