WM
William Mason — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bronx-County, New York
Our Model Tree links this William Mason across the 1920, 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed), with identified parents Pearl — first a son (b.~1914), then head of a 6-person household.
Age 26
b. ~1914
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bronx-County, New York |
| Surname | Mason |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | N. Y. C. |
| 1935 Residence (County) | Bronx |
| Additional Details | |
| Occupation | clerk |
| Industry | steel Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 520 |
| Highest Grade | No 8 |
| 1935 Residence | N. Y. |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Clerk |
| Township / Ward | N Y C |
| Est. Birth Year | ~1914 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Gladys Mason | Daughter | — | 23 | ~1917 |
| Dorothy Mason | Daughter | — | 25 | ~1915 |
| Pearl Mason | Head | — | 55 | ~1885 |
| Gloria Perkins | Other | — | 9 | ~1931 |
| William Mason | Son | — | 26 | ~1914 |
| Ferdinand Mason | Son | — | 15 | ~1925 |
Census Appearances
1920
Bronx, New …
Son, age 6
Bronx, New York · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| 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 16
Bronx, New York · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Packer |
| Industry | Drug Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Bronx-County, New …
Son, age 26
Bronx-County, New York · implied b. ~1914 — 6 household members
| Surname | Mason |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | N. Y. C. |
| 1935 Residence (County) | Bronx |
| Occupation | clerk |
| Industry | steel Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 520 |
| Highest Grade | No 8 |
| 1935 Residence | N. Y. |
| 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 Mason across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Pearl Mason (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Pearl Mason
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Mason
Son · 1940 · age 26 · b. ~1914 · New York
★ You are viewing this record
Sibling
Ferdinand Mason
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Mason
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Mason
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 — Bronx-County, New York
Open full size
1940 US Federal Census — Bronx-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02474-00441)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Abram Feinberg | 25 | son | Factory | Penn. |
| 42 | Thomas Cocozelia | 25 | lodger | — | Greece |
| 43 | Morris Klein | 52 | head | — | Hungary |
| 44 | Mary Klein | 45 | wife | — | Hungary |
| 45 | David Klein | 21 | son | New Worker | Conn. |
| 46 | Mary Margulies | 24 | daughter | Bookkeeper | Conn. |
| 47 | Harry Margulies | 24 | son-in-law | Manager | N. Y. |
| 48 | Solomon Karlin | 55 | head | Waiter | Russia |
| 49 | Sarah Karlin | 50 | wife | — | Poland |
| 50 | Frances Ackerman | 24 | step-daughter | Secretary | Poland |
| 51 | Sylvia Ackerman | 22 | step-daughter | Bookkeeper | Poland |
| 52 | Thomas Jr Dalton | 40 | head | Office Clerk | N. Y. |
| 53 | Nora Dalton | 40 | wife | — | N. Y. |
| 54 | Thomas Dalton | 7 | son | — | N. Y. |
| 55 | Samuel Raines | 54 | head | Cutter | N. Y. |
| 56 | Theresa Raines | 51 | wife | — | N. Y. |
| 57 | Albert Rosenblatt | 29 | lodger | Musician | N. Y. |
| 58 | George Ramblatt | 19 | lodger | Clerk | Rhode Island |
| 59 | Herbert Kaplan | 19 | lodger | Clerk | New York |
| 60 | Pearl Mason | 55 | head | — | New York |
| 61 | William Mason THIS PERSON | 26 | son | Clerk | New York |
| 62 | Dorothy Mason | 25 | daughter | Operator | New York |
| 63 | Gladys Mason | 23 | daughter | Operator | New York |
| 64 | Ferdinand Mason | 15 | son | — | New York |
| 65 | Gloria Perkins | 9 | gr-daughter | — | New York |
| 66 | Max Shapiro | 55 | head | Cloaks | Russia |
| 67 | Rose Shapiro | 48 | wife | — | Russia |
| 68 | Abe Shapiro | 26 | son | Clerk | New York |
| 69 | Sol Shapiro | 22 | son | — | New York |
| 70 | Norman Shapiro | 11 | son | — | New York |
| 71 | Mary Haines | 61 | head | — | New York |
| 72 | Bertram Sr Haines | 35 | son | Truck Driver | New York |
| 73 | Doris Haines | 15 | gr-daughter | — | New York |
| 74 | Bertram Jr Haines | 12 | gr-son | — | New York |
| 75 | George Braun | 50 | head | Clerk | New York |
| 76 | Winifred Braun | 44 | daughter | — | New York |
| 77 | William Orth | 56 | head | Bookkeeper | New York |
| 78 | Theresa Orth | 44 | wife | — | New York |
| 79 | William Jr Orth | 15 | son | — | New York |
| 80 | Robert Orth | 10 | son | — | New York |
Pedigree Summary
William + 3 siblings
Gen 1 · 1 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)