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John Reilly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Reilly across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 9-person household.
Age 13
b. ~1927
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Reilly |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1927 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Theresa Reilly | Daughter | — | 11 | ~1929 |
| Ann Reilly | Daughter | — | 19 | ~1921 |
| Alice Reilly | Daughter | — | 17 | ~1923 |
| Lawrence Reilly | Head | — | 58 | ~1882 |
| Jennie Reid | Other | — | 28 | ~1912 |
| John Reilly | Son | — | 13 | ~1927 |
| Lawrence Reilly | Son | — | 16 | ~1924 |
| Sarah Reilly | Son | — | 6 | ~1934 |
| Quila Reilly | Spouse | — | 50 | ~1890 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 3
Suffolk, Massachusetts · implied b. ~1927 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Riley |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Irish Free State |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 13
Suffolk-County, Massachusetts · implied b. ~1927 — 9 household members
| Surname | Reilly |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Highest Grade | No 7 |
| 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 John Reilly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Reilly
Son · 1940 · age 13 · b. ~1927 · Massachusetts
★ You are viewing this record
Sibling
Theresa Reilly
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Reilly
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Reilly
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Reilly
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Reilly
Sibling · 1940 · age 16
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
38 people indexed on this census page (nara:1940:m-t0627-01670-00434)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Betty Emig | 32 | Daughter | Bookkeeper | Massachusetts |
| 42 | Harriet Emig | 27 | Daughter | — | Massachusetts |
| 43 | Jean D Walker | 24 | Daughter | — | Massachusetts |
| 44 | Morris Morris | 34 | Son-in-law | Laborer | Massachusetts |
| 45 | Faye Morris | 3 | Granddaughter | — | Massachusetts |
| 46 | Isabelle Morris | 1 | Granddaughter | — | Massachusetts |
| 47 | Rose Kason | 41 | Head | — | Russia |
| 48 | Gerald Kason | 8 | Son | — | Massachusetts |
| 49 | Arthur Kason | 17 | Son | — | Massachusetts |
| 50 | Daisy Kason | 44 | Sister-in-law | Salesgirl | Massachusetts |
| 51 | Ellis Kason | 21 | Nephew | Salesman | Massachusetts |
| 52 | Robert Kason | 14 | Nephew | — | Massachusetts |
| 53 | Morris Morris | 76 | Father-in-law | Glazier | Russia |
| 54 | Morris Rotman | 28 | Head | Manager | Massachusetts |
| 55 | Pearl Rotman | 24 | Wife | — | Massachusetts |
| 56 | Deborah Rotman | 5 | Daughter | — | Massachusetts |
| 57 | Abraham Zushula | 39 | Head | Janitor | Russia |
| 58 | Minnie Zushula | 36 | Wife | — | Massachusetts |
| 59 | Louis Zushula | 2 | Son | — | Massachusetts |
| 60 | Avram Wolfe | 8 | Step-son | — | Massachusetts |
| 61 | Solomon Zushula | 75 | Head | — | Russia |
| 62 | Ida Zushula | 70 | Wife | — | Russia |
| 63 | Edward Morse | 35 | Head | Truck Driver | South Carolina |
| 64 | Elizabeth Morse | 33 | Wife | — | Massachusetts |
| 65 | George Ballard | 48 | Head | Cook | Massachusetts |
| 66 | Lillie Ballard | 44 | Wife | Housework | Massachusetts |
| 67 | Lawrence Reilly | 58 | Head | — | Massachusetts |
| 68 | Quila Reilly | 50 | Wife | — | Wisconsin |
| 69 | Ann Eileen Reilly | 19 | Daughter | Stenographer | Massachusetts |
| 70 | Alice Reilly | 17 | Daughter | Stenographer | Massachusetts |
| 71 | Lawrence Reilly | 16 | Son | — | Massachusetts |
| 72 | John Reilly THIS PERSON | 13 | Son | — | Massachusetts |
| 73 | Theresa Reilly | 11 | Daughter | — | Massachusetts |
| 74 | Sarah Reilly | 6 | Son | — | Massachusetts |
| 75 | Jennie Reid | 28 | Lodger | Ticket Seller | Massachusetts |
| 76 | Mary O'Brien | 25 | Head | — | Massachusetts |
| 77 | Walter Kelley | 52 | Son-in-law | — | Ohio |
| 78 | Grace Kelley | 25 | Daughter | — | 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)