WB
William Brooks — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this William Brooks across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1920), then head of a 14-person household.
Age 20
b. ~1920
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Brooks |
| Given Name | William F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Painter |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 40 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Painter |
| Township / Ward | Boston City |
| Est. Birth Year | ~1920 |
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.
14 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mary Brooks | Daughter | — | 23 | ~1917 |
| Catherine Brooks | Daughter | — | 18 | ~1922 |
| Helen Brooks | Daughter | — | 11 | ~1929 |
| Pauline Brooks | Daughter | — | 6 | ~1934 |
| Janet Brooks | Daughter | — | 3 | ~1937 |
| Jeanne Brooks | Daughter | — | 8 | ~1932 |
| Theresa Brooks | Daughter | — | 14 | ~1926 |
| Marguerite Brooks | Daughter | — | 17 | ~1923 |
| Lillian Brooks | Daughter | — | 22 | ~1918 |
| William Brooks | Head | — | 49 | ~1891 |
| William Brooks | Son | — | 20 | ~1920 |
| Thomas Brooks | Son | — | 17 | ~1923 |
| Robert Brooks | Son | — | 9 | ~1931 |
| Mary Brooks | Spouse | — | 40 | ~1900 |
Census Appearances
1920
Suffolk, Massachusetts
Son, age
Suffolk, Massachusetts · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Ireland |
| Can Read | No |
| Can Write | No |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 11
Suffolk, Massachusetts · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 20
Suffolk-County, Massachusetts · implied b. ~1920 — 14 household members
| Surname | Brooks |
| Given Name | William F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Painter |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 40 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Brooks across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Brooks (~0.92 confidence) and father William Brooks (~0.92 confidence) and father William Brooks (~0.92 confidence) and mother Mary Brooks (~0.92 confidence) and mother Mary Brooks (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Brooks
b. ~1891
Source father
● Household
· direct · ~0.92
Father
William Brooks
b. ~1892
Source father
● Household
· direct · ~0.92
Father
William Brooks
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Mary Brooks
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Mary Brooks
b. ~1900
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Brooks
Son · 1940 · age 20 · b. ~1920 · Massachusetts
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Sibling
Pauline Brooks
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Brooks
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marguerite Brooks
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janet Brooks
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Brooks
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Brooks
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Brooks
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Brooks
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeanne Brooks
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Brooks
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Brooks
Sibling · 1940 · age 11
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01668-00433)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Kelley | 4 | Son | — | Massachusetts |
| 42 | Nora T. Kelley | 2 | Daughter | — | Massachusetts |
| 43 | William F. Brooks | 49 | Head | Waiter | Canada English |
| 44 | Mary Brooks | 40 | Wife | — | Irish Free State |
| 45 | Mary N. Brooks | 23 | Daughter | Clerk, File | Massachusetts |
| 46 | Lillian Brooks | 22 | Daughter | Salesgirl | Massachusetts |
| 47 | William F. Brooks THIS PERSON | 20 | Son | Painter | Massachusetts |
| 48 | Catherine V. Brooks | 18 | Daughter | Switchboard Operator | Massachusetts |
| 49 | Marguerite Brooks | 17 | Daughter | New Worker | Massachusetts |
| 50 | Thomas Brooks | 17 | Son | — | Massachusetts |
| 51 | Theresa Brooks | 14 | Daughter | — | Massachusetts |
| 52 | Helen Brooks | 11 | Daughter | — | Massachusetts |
| 53 | Robert Brooks | 9 | Son | — | Massachusetts |
| 54 | Jeanne Brooks | 8 | Daughter | — | Massachusetts |
| 55 | Pauline Brooks | 6 | Daughter | — | Massachusetts |
| 56 | Janet Brooks | 3 | Daughter | — | Massachusetts |
| 57 | William Flatley | 45 | Head | Maintenance Man | Massachusetts |
| 58 | Helen Q. Flatley | 42 | Wife | — | Massachusetts |
| 59 | Robert Flatley | 22 | Son | Clerk, Postal | Massachusetts |
| 60 | Doris Flatley | 21 | Daughter | Clerk, File | Massachusetts |
| 61 | Claire Flatley | 17 | Daughter | — | Massachusetts |
| 62 | William Jr. Flatley | 14 | Son | — | Massachusetts |
| 63 | Jeanne Flatley | 11 | Daughter | — | Massachusetts |
| 64 | Thomas Flatley | 2 | Son | — | Massachusetts |
| 65 | Mary Murphy | 87 | Mother-in-law | — | Irish Free State |
| 66 | Nora Smith | 57 | Head | — | Irish Free State |
| 67 | Marie Smith | 26 | Daughter | Clerk, Billing | Massachusetts |
| 68 | Peter Smith | 24 | Son | Stenographer | Massachusetts |
| 69 | Madge Smith | 21 | Daughter | Asst. Sales Clerk | Massachusetts |
| 70 | Rita Smith | 17 | Daughter | Stenographer | Massachusetts |
| 71 | Francis Donovan | 34 | Head | Trucking | Massachusetts |
| 72 | Anna Donovan | 29 | Wife | — | Massachusetts |
| 73 | Margaret Donovan | 7 | Daughter | — | Massachusetts |
| 74 | Anna May Donovan | 3 | Daughter | — | Massachusetts |
| 75 | Edmund J. Kelley | 65 | Head | — | Massachusetts |
| 76 | Margaret Kelley | 65 | Wife | — | Massachusetts |
| 77 | Anna T. Kelley | 33 | Daughter | Stenographer | Massachusetts |
| 78 | John H. Kelley | 30 | Son | Teacher | Massachusetts |
| 79 | Margaret M. Kelley | 25 | Daughter | Stenographer | Massachusetts |
| 80 | Ellen Sweeney | 75 | Sister | — | Irish Free State |
Related Census Records
Pedigree Summary
William + 11 siblings
Gen 1 · 5 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)