JC
James Connolly — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this James Connolly across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Thomas & Thomas — first a son (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Connolly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Salesman |
| Industry | Filling Co |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 278 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Salesman |
| Township / Ward | Boston |
| Est. Birth Year | ~1913 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Clara Connolly | Head | — | 61 | ~1879 |
| Barbara Connolly | Daughter | — | 18 | ~1922 |
| Helen Connolly | Daughter | — | 22 | ~1918 |
| James Connolly | Son | — | 27 | ~1913 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 6
Middlesex, Massachusetts · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connelly |
| Given Name | James S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
Son, age 16
Suffolk, Massachusetts · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connelly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| 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 27
Suffolk-County, Massachusetts · implied b. ~1913 — 4 household members
| Surname | Connolly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Occupation | Salesman |
| Industry | Filling Co |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 278 |
| 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 James Connolly across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Thomas Connelly (~0.92 confidence) and father Thomas Connelly (~0.92 confidence) and mother Clara Connolly (~0.92 confidence) and mother Mary Connelly (~0.92 confidence) and mother Winifred Connelly (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Connelly
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Thomas Connelly
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Clara Connolly
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Mary Connelly
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Winifred Connelly
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Connolly
Son · 1940 · age 27 · b. ~1913 · Massachusetts
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Sibling
Barbara Connolly
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Connolly
Sibling · 1940 · age 22
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-t0627-01671-00428)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George Schofield | 17 | Son | Laborer | Massachusetts |
| 2 | Ellen Schofield | 74 | Mother | — | Massachusetts |
| 3 | Charles Schofield | 12 | Son | — | Massachusetts |
| 4 | Clara M. Connolly | 61 | Head | — | Massachusetts |
| 5 | James Connolly THIS PERSON | 27 | Son | Salesman | Massachusetts |
| 6 | Helen Connolly | 22 | Daughter | Stenographer | Massachusetts |
| 7 | Barbara Connolly | 18 | Daughter | — | Massachusetts |
| 8 | Rebecca M. Woodward | 58 | Head | — | Canada Eng |
| 9 | Harlowe Woodward | 27 | Son | Long Shoreman | Massachusetts |
| 10 | Arthur Liddell | 27 | Son-in-law | Commercial Artist | Scotland |
| 11 | Muriel Liddell | 30 | Daughter | — | Massachusetts |
| 12 | Edward Norbut | 24 | Son-in-law | Counter Man | Massachusetts |
| 13 | Harriette Norbut | 17 | Daughter | — | Massachusetts |
| 14 | Reginald F. Forsgren | 52 | Head | Painter | Sweden |
| 15 | Ellen Forsgren | 36 | Wife | — | Sweden |
| 16 | Daniel Forsgren | 17 | Son | — | Massachusetts |
| 17 | Lillian Forsgren | 12 | Daughter | — | Massachusetts |
| 18 | Douglas Holt | 41 | Son-in-law | Knitter | Sweden |
| 19 | Helen A. O'Mara | 27 | Head | Metal Smith | Massachusetts |
| 20 | Marion O'Mara | 26 | Wife | — | Massachusetts |
| 21 | Marion Cummings | 30 | Head | Secretary | Massachusetts |
| 22 | Evelyn Cummings | 29 | Sister | Hostess | Massachusetts |
| 23 | Paul B. Newell | 31 | Head | Foreman | Canada Eng |
| 24 | Alice G. Newell | 31 | Wife | — | Massachusetts |
| 25 | Anne Marie Newell | 0 | Daughter | — | Massachusetts |
| 26 | Arthur Lenty | 26 | Head | Machinist | Massachusetts |
| 27 | Hazel Lenty | 30 | Wife | — | Vermont |
| 28 | Samuel F. Jr. Perkins | 24 | Head | Salesman | Massachusetts |
| 29 | Marie A. Perkins | 21 | Wife | — | Massachusetts |
| 30 | Marie A. Perkins | 1 | Daughter | — | Massachusetts |
| 31 | Samuel F. Sr. Perkins | 55 | Father | Adman | Massachusetts |
| 32 | Edward A. Long | 55 | Head | Salesman | Massachusetts |
| 33 | Mary Long | 60 | Sister | Clerk | Massachusetts |
| 34 | John Aurell | 50 | Head | Electrician | Canada Eng |
| 35 | Edith Aurell | 34 | Wife | — | Massachusetts |
| 36 | Harry Aiken | 24 | Lodger | Engineer | Massachusetts |
| 37 | Frances Aiken | 34 | Lodger | — | Massachusetts |
| 38 | Dianne Aiken | 0 | Lodger | — | Massachusetts |
| 39 | Florence Kelly | 36 | Lodger | — | Massachusetts |
| 40 | Frank Richards | 72 | Lodger | — | Canada Eng |
Related Census Records
Pedigree Summary
James + 2 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)