WM
William Mack — 1940 US Census Record
Model Tree available1940 United States Federal Census · Queens-County, New York
Our Model Tree links this William Mack across the 1920, 1930 and 1940 US Censuses in Queens-County, New York (XGBoost, ~Confirmed), with identified parents Charles & Charles — first a son (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Queens-County, New York |
| Surname | Mack |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Queensborough |
| 1935 Residence (County) | Queens |
| Additional Details | |
| Occupation | Attorney |
| Industry | Law Firm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2698 |
| Highest Grade | C-5 |
| 1935 Residence | Same house |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Attorney |
| Township / Ward | Queensborough |
| Est. Birth Year | ~1912 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Mack | Son | — | 28 | ~1912 |
| Charles Mack | Head | — | 58 | ~1882 |
| Margaret Mack | Daughter | — | 23 | ~1917 |
| Elizabeth Mack | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Queens, New …
Son, age 8
Queens, New York · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mack |
| Given Name | William H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Queens, New …
Son, age 19
Queens, New York · implied b. ~1911 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mack |
| Given Name | William M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Queens-County, New …
Son, age 28
Queens-County, New York · implied b. ~1912 — 4 household members
| Surname | Mack |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Queensborough |
| 1935 Residence (County) | Queens |
| Occupation | Attorney |
| Industry | Law Firm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2698 |
| Highest Grade | C-5 |
| 1935 Residence | Same house |
| 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 William Mack across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Mack (~0.92 confidence) and father Charles Mack (~0.92 confidence) and father Charles Mack (~0.92 confidence) and mother Carolyn Mack (~0.92 confidence) and mother Elizabeth Mack (~0.92 confidence) and mother Florence Mack (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Mack
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Charles Mack
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Charles Mack
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Carolyn Mack
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Mack
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Florence Mack
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Mack
Son · 1940 · age 28 · b. ~1912 · New York
★ You are viewing this record
Sibling
Margaret Mack
Sibling · 1940 · age 23
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
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-t0627-02754-00698)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edith Schneider | 24 | Sister | Receptionist | New York |
| 42 | Richard Schneider | 20 | Brother | File Clerk-Messenger | New York |
| 43 | Joseph Haffner | 57 | Head | Stenographer | New York |
| 44 | Margaret Haffner | 58 | Wife | — | New York |
| 45 | Edward Haffner | 32 | Son | Purchasing Clerk | New York |
| 46 | John Haffner | 61 | Head | Police Officer | New York |
| 47 | Anna Haffner | 51 | Wife | — | New York |
| 48 | John K. Jr. Quigley | 32 | Head | Correction Off | New York |
| 49 | Bertha Quigley | 27 | Wife | Telephone Opr | New York |
| 50 | Kevin Quigley | 1 | Son | — | New York |
| 51 | Alphonse Terribuza | 56 | Head | Chairwoman | Lithuania |
| 52 | John Terribuza | 29 | Son | Telephone Repairer | New York |
| 53 | Joseph Terribuza | 23 | Son | Shipping Clerk | New York |
| 54 | Charles F. Mack | 58 | Head | Civil Engineer | New York |
| 55 | Elizabeth Mack | 57 | Wife | — | New York |
| 56 | William Mack THIS PERSON | 28 | Son | Attorney | New York |
| 57 | Margaret Mack | 23 | Daughter | Typist | New York |
| 58 | Julius Lange | 36 | Head | Laborer | Germany |
| 59 | Frieda Lange | 35 | Wife | Saleslady | Germany |
| 60 | Annie Markhofer | 62 | Head | — | New York |
| 61 | Elizabeth Klob | 43 | Daughter | Candy Packer | New York |
| 62 | Kurt Vogelmann | 55 | Head | Bookkeeper | Germany |
| 63 | Marianne Vogelmann | 55 | Wife | Hand Crocheting | Germany |
| 64 | Bertha Vogelmann | 30 | Daughter | Waitress | New York |
| 65 | Louis Weber | 41 | Lodger | Mixer | N. J. |
| 66 | James J. Foley | 33 | Lodger | Investigating Collector | Conn. |
| 67 | Frank Mohr | 41 | Head | Plumbing Inspector | New York |
| 68 | Anna Mohr | 40 | Wife | Waitress | New York |
| 69 | Herman Maier | 71 | Father-in-law | Owner-Cook | Germany |
| 70 | Frank Schaefer | 72 | Head | Carpenter | New York |
| 71 | Anna B. Schaefer | 70 | Wife | — | Germany |
| 72 | Nelly Myers | 51 | Head | — | New York |
| 73 | Walter Myers | 24 | Son | City Fireman | New York |
| 74 | William Hannsknecht | 27 | Daughter | Stenographer-Typist | New York |
| 75 | William Hannsknecht | 30 | Son-in-law | City Fireman | New York |
| 76 | Herbert Doscher | 38 | Head | Accountant | New York |
| 77 | Helen Doscher | 36 | Wife | Bookkeeper | New York |
| 78 | James Brown | 55 | Head | Beverly-Scherer | England |
| 79 | Edith Brown | 47 | Wife | — | England |
| 80 | Robert Brown | 21 | Son | Salesman | England |
Pedigree Summary
William + 1 sibling
Gen 1 · 6 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)