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John Maloney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Maloney across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 10-person household.
Age 15
b. ~1925
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Maloney |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | Yes H-1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston |
| Est. Birth Year | ~1925 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Helen Maloney | Daughter | — | 17 | ~1923 |
| Mary Maloney | Daughter | — | 10 | ~1930 |
| Agnes Maloney | Daughter | — | 17 | ~1923 |
| Eileen Maloney | Daughter | — | 5 | ~1935 |
| Leon Maloney | Head | — | 43 | ~1897 |
| James Maloney | Son | — | 16 | ~1924 |
| Leo Maloney | Son | — | 22 | ~1918 |
| Vincent Maloney | Son | — | 13 | ~1927 |
| John Maloney | Son | — | 15 | ~1925 |
| Helen Maloney | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 4
Suffolk, Massachusetts · implied b. ~1926 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Maloney |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 15
Suffolk-County, Massachusetts · implied b. ~1925 — 10 household members
| Surname | Maloney |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Class of Worker | 0 |
| Highest Grade | Yes H-1 |
| 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 Maloney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Maloney
Son · 1940 · age 15 · b. ~1925 · Massachusetts
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Sibling
Mary Maloney
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Maloney
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Maloney
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Maloney
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Maloney
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Maloney
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Maloney
Sibling · 1940 · age 17
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
39 people indexed on this census page (nara:1940:m-t0627-01675-00526)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary E Meighan | 57 | Head | — | Massachusetts |
| 42 | Mary J. E Meighan | 25 | Daughter | Steno Secretary | Massachusetts |
| 43 | Frances E. Herbert | 23 | Daughter | Steno Secretary | Massachusetts |
| 44 | Thomas J Herbert | 4 | Grandson | — | Massachusetts |
| 45 | Charles E Herbert | 3 | Grandson | — | Massachusetts |
| 46 | Francis M. Herbert | 3 | Grandson | — | Massachusetts |
| 47 | Pano L. Christo | 42 | Head | Fruit Peddler | Albania |
| 48 | Ada Christo | 32 | Wife | — | Albania |
| 49 | Catherine Christo | 13 | Daughter | — | Massachusetts |
| 50 | May Christo | 12 | Daughter | — | Massachusetts |
| 51 | Kristie Christo | 11 | Daughter | — | Massachusetts |
| 52 | Evangelina Christo | 7 | Daughter | — | Massachusetts |
| 53 | Arthur Christo | 4 | Son | — | Massachusetts |
| 54 | Anastasia Christo | 58 | Mother | — | Albania |
| 55 | Louis Christo | 65 | Father | — | Albania |
| 56 | Nickolas Christo | 30 | Brother | Clerk | Albania |
| 57 | Olga Christo | 23 | Sister-in-law | — | Albania |
| 58 | Leon P. Maloney | 43 | Head | Repairman | Massachusetts |
| 59 | Helen Maloney | 47 | Wife | — | Canada-English |
| 60 | Leo Maloney | 22 | Son | Truck Driver | Massachusetts |
| 61 | Helen Maloney | 17 | Daughter | — | Massachusetts |
| 62 | Agnes Maloney | 17 | Daughter | Houseworker | Massachusetts |
| 63 | James Maloney | 16 | Son | — | Massachusetts |
| 64 | John Maloney THIS PERSON | 15 | Son | — | Massachusetts |
| 65 | Vincent Maloney | 13 | Son | — | Massachusetts |
| 66 | Mary Maloney | 10 | Daughter | — | Massachusetts |
| 67 | Eileen Maloney | 5 | Daughter | — | Massachusetts |
| 68 | Charles J. O'Neil | 35 | Head | Truck Driver | Massachusetts |
| 69 | Irene E O'Neil | 38 | Wife | — | Massachusetts |
| 70 | Richard C. Welsh | 17 | Step-son | Assistant Educator | Massachusetts |
| 71 | Mary M. Welsh | 17 | Step-daughter | Stitcher | Massachusetts |
| 72 | Irene Welsh | 13 | Step-daughter | — | Massachusetts |
| 73 | Michael Hogan | 37 | Head | Route Salesman | Eire |
| 74 | Margaret Hogan | 38 | Wife | — | Massachusetts |
| 75 | Richard Hogan | 8 | Son | — | Massachusetts |
| 76 | Mary Hogan | 10 | Daughter | — | Massachusetts |
| 77 | Paul Hogan | 5 | Son | — | Massachusetts |
| 78 | Robert Hogan | 4 | Son | — | Massachusetts |
| 79 | Walter Hogan | 0 | Son | — | Massachusetts |
Related Census Records
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)