WB
William Brady — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this William Brady across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 13-person household.
Age 16
b. ~1924
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Brady |
| Given Name | William J. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Malden City |
| Est. Birth Year | ~1924 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Katherine Brady | Daughter | — | 19 | ~1921 |
| Ruth Brady | Daughter | — | 8 | ~1932 |
| Helen Brady | Daughter | — | 11 | ~1929 |
| Mary Brady | Daughter | — | 7 | ~1933 |
| Anne Brady | Daughter | — | 5 | ~1935 |
| William Brady | Head | — | 43 | ~1897 |
| John Brady | Other | — | 50 | ~1890 |
| John Brady | Son | — | 21 | ~1919 |
| Paul Brady | Son | — | 10 | ~1930 |
| William Brady | Son | — | 16 | ~1924 |
| Francis Brady | Son | — | 14 | ~1926 |
| Bernard Brady | Son | — | 12 | ~1928 |
| Mary Brady | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 6
Middlesex, Massachusetts · implied b. ~1924 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brady |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| 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
Middlesex-County, Massachusetts
Son, age 16
Middlesex-County, Massachusetts · implied b. ~1924 — 13 household members
| Surname | Brady |
| Given Name | William J. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden City |
| 1935 Residence (County) | Middlesex |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 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 Brady across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Brady
Son · 1940 · age 16 · b. ~1924 · Massachusetts
★ You are viewing this record
Sibling
Helen Brady
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Brady
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anne Brady
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernard Brady
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Brady
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Brady
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Brady
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Brady
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Brady
Sibling · 1940 · age 8
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01608-00101)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William J. Brady | 43 | Head | Freight Handler | Massachusetts |
| 2 | Mary E. Brady | 43 | Wife | — | Massachusetts |
| 3 | John J. Brady | 21 | Son | Book Keeper | Massachusetts |
| 4 | Katherine V. Brady | 19 | Daughter | New Worker | Massachusetts |
| 5 | William J. Jr. Brady THIS PERSON | 16 | Son | — | Massachusetts |
| 6 | Francis J. Brady | 14 | Son | — | Massachusetts |
| 7 | Bernard F. Brady | 12 | Son | — | Massachusetts |
| 8 | Helen T. Brady | 11 | Daughter | — | Massachusetts |
| 9 | Paul Brady | 10 | Son | — | Massachusetts |
| 10 | Ruth Brady | 8 | Daughter | — | Massachusetts |
| 11 | Mary Brady | 7 | Daughter | — | Massachusetts |
| 12 | Anne L. Brady | 5 | Daughter | — | Massachusetts |
| 13 | John F. Brady | 50 | Brother | Truck Manager | Massachusetts |
| 14 | Thomas F. Carroll | 65 | Head | Blacksmith | Ireland |
| 15 | Annie Q. Carroll | 56 | Wife | — | Massachusetts |
| 16 | Arleen L. Carroll | 29 | Daughter | Clerk | Massachusetts |
| 17 | — | None | — | — | — |
| 18 | Philip J. Drysdale | 32 | Head | Clerk | Canada-English |
| 19 | Yvonne M. Drysdale | 31 | Wife | Stitcher | Canada-English |
| 20 | Raymond J. Drysdale | 29 | Brother | Laborer | Canada-English |
| 21 | Alice Drysdale | 34 | Sister-in-law | — | Canada-English |
| 22 | Donald R. Drysdale | 3 | Grand-nephew | — | Massachusetts |
| 23 | Thomas E. Flye | 67 | Head | — | England |
| 24 | Ida F. Flye | 41 | Wife | — | Massachusetts |
| 25 | Mildred E. Flye | 21 | Daughter | Nurse | Massachusetts |
| 26 | Mason J. Flye | 18 | Son | — | Massachusetts |
| 27 | Philip H. Flye | 16 | Son | — | Massachusetts |
| 28 | Daniel E. Foley | 52 | Head | Laborer | Massachusetts |
| 29 | Helen O. Foley | 48 | Wife | — | Massachusetts |
| 30 | Helen J. Foley | 20 | Daughter | Telephone Operator | Massachusetts |
| 31 | Robert F. Foley | 19 | Son | New Worker | Massachusetts |
| 32 | Joseph D. Foley | 17 | Son | — | Massachusetts |
| 33 | Francis C. Foley | 15 | Son | — | Massachusetts |
| 34 | Norman P. Foley | 13 | Son | — | Massachusetts |
| 35 | Leo F. Sullivan | 49 | Brother-in-law | — | Massachusetts |
| 36 | Charles F. Sullivan | 42 | Brother-in-law | Watchman | Massachusetts |
| 37 | Maria C. Sullivan | 39 | Sister-in-law | Telephone Operator | Massachusetts |
| 38 | Walter A. Wheel | 55 | Head | Letter Carrier | Massachusetts |
| 39 | Ella H. Wheel | 52 | Wife | — | Massachusetts |
| 40 | Walter A. Jr. Wheel | 19 | Son | — | Massachusetts |
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)