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John Kelly — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Kelly across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Richard & Patrick — first a son (b.~1914), then head of a 8-person household.
Age 26
b. ~1914
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Kelly |
| Given Name | John P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Factory Laborer |
| Industry | Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Factory Laborer |
| Township / Ward | Boston City |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Kelly | Daughter | — | 24 | ~1916 |
| Patrick Kelly | Head | — | 54 | ~1886 |
| Charles Kelly | Son | — | 15 | ~1925 |
| John Kelly | Son | — | 26 | ~1914 |
| Joseph Kelly | Son | — | 17 | ~1923 |
| William Kelly | Son | — | 19 | ~1921 |
| Thomas Kelly | Son | — | 21 | ~1919 |
| Mary Kelly | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Suffolk, Massachusetts
Other, age 5
Suffolk, Massachusetts · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelly |
| Given Name | John P. |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 15
Suffolk, Massachusetts · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelly |
| Given Name | John P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| 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 26
Suffolk-County, Massachusetts · implied b. ~1914 — 8 household members
| Surname | Kelly |
| Given Name | John P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Factory Laborer |
| Industry | Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| 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 John Kelly across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Richard Kelly (~0.92 confidence) and father Patrick Kelly (~0.92 confidence) and mother Mary Kelly (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Richard Kelly
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Patrick Kelly
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Mary Kelly
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Kelly
Son · 1940 · age 26 · b. ~1914 · Massachusetts
★ You are viewing this record
Sibling
Mary Kelly
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Kelly
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Kelly
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Kelly
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Kelly
Sibling · 1940 · age 15
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-t0627-01668-00298)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Peter Fratepeli | 48 | Head | Waiter | Greece |
| 2 | Katherine Fratepeli | 50 | Wife | — | Greece |
| 3 | Nicholas Fratepeli | 23 | Son | Waiter | Greece |
| 4 | George Fratepeli | 22 | Son | Waiter | Greece |
| 5 | Arthur Fratepeli | 12 | Son | — | Greece |
| 6 | Jonas Ariansen | 51 | Head | Rigger | Norway |
| 7 | Catherine Ariansen | 51 | Wife | — | Eire |
| 8 | Thomas Ariansen | 16 | Son | — | Massachusetts |
| 9 | John H. Mccarthy | 32 | Nephew | Machinist | Vermont |
| 10 | Patrick Kelly | 54 | Head | Laborer | Eire |
| 11 | Mary Kelly | 52 | Wife | — | Eire |
| 12 | John P. Kelly THIS PERSON | 26 | Son | Factory Laborer | Massachusetts |
| 13 | Mary Kelly | 24 | Daughter | Operator | Massachusetts |
| 14 | Thomas Kelly | 21 | Son | Clerk - B. L. | Massachusetts |
| 15 | William Kelly | 19 | Son | Clerk - Desk | Massachusetts |
| 16 | Joseph Kelly | 17 | Son | — | Massachusetts |
| 17 | Charles Kelly | 15 | Son | — | Massachusetts |
| 18 | William Prendergast | 61 | Head | Carrier | Massachusetts |
| 19 | Annie Prendergast | 60 | Wife | — | Massachusetts |
| 20 | Earl G. Tabor | 39 | Head | Engineer | West Virginia |
| 21 | Laura Tabor | 35 | Wife | — | Maine |
| 22 | Robert Tabor | 13 | Son | — | Massachusetts |
| 23 | Earl Jr. Tabor | 10 | Son | — | Massachusetts |
| 24 | Stanley Tabor | 8 | Son | — | Massachusetts |
| 25 | Laura Tabor | 2 | Daughter | — | Massachusetts |
| 26 | Helen Mcdonald | 60 | Head | Waitress | Massachusetts |
| 27 | Daniel D. Mcdonald | 31 | Son | Estimating | Massachusetts |
| 28 | Marguerite Mcdonald | 29 | Wife | — | Massachusetts |
| 29 | Daniel Jr. Mcdonald | 4 | Son | — | Massachusetts |
| 30 | Virginia Kazan | 17 | Lodger | — | Massachusetts |
| 31 | Lorraine Jones | 21 | Lodger | Labeller | Massachusetts |
| 32 | Edward Jones | 19 | Lodger | Helper | Massachusetts |
| 33 | Bernard Macdonald | 38 | Head | Timekeeper | Massachusetts |
| 34 | Mary Macdonald | 36 | Wife | Waitress | Massachusetts |
| 35 | Edward J. Macdonald | 16 | Son | — | Massachusetts |
| 36 | Warren Macdonald | 13 | Son | — | Massachusetts |
| 37 | Annie Hill | 61 | Head | — | North Ireland |
| 38 | John Roakes | 43 | Lodger | Carpenter | Latvia |
| 39 | Margaret Tucker | 65 | Head | — | North Ireland |
| 40 | Edward S. Tucker | 41 | Son | Toe Laster | Massachusetts |
Pedigree Summary
John + 5 siblings
Gen 1 · 3 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)