JC
James Connolly — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this James Connolly across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1916), then head of a 4-person household.
Age 24
b. ~1916
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Connolly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Belmont |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Truck driver |
| Industry | Retail Oil |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 420 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Truck Driver |
| Township / Ward | Belmont |
| Est. Birth Year | ~1916 |
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 |
|---|---|---|---|---|
| John Connolly | Head | — | 65 | ~1875 |
| Agnes Connolly | Spouse | — | 65 | ~1875 |
| James Connolly | Son | — | 24 | ~1916 |
| William Connolly | Son | — | 19 | ~1921 |
Census Appearances
Son, age 4
Norfolk, Massachusetts · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connelly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Norfolk, Massachusetts
Son, age 14
Norfolk, Massachusetts · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connolly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 24
Middlesex-County, Massachusetts · implied b. ~1916 — 4 household members
| Surname | Connolly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Belmont |
| 1935 Residence (County) | Middlesex |
| Occupation | Truck driver |
| Industry | Retail Oil |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 420 |
| Highest Grade | Hs 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 2 locations, using XGBoost record linkage. Identified parents: father John Connelly (~0.92 confidence) and father John Connolly (~0.92 confidence) and mother Agnes Connolly (~0.92 confidence) and mother Annie Connelly (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Connelly
b. ~1880
Source father
● Household
· direct · ~0.92
Father
John Connolly
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Agnes Connolly
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Annie Connelly
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Connolly
Son · 1940 · age 24 · b. ~1916 · Massachusetts
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Sibling
William Connolly
Sibling · 1940 · age 19
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-t0627-01603-00066)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marion Irvine | 43 | Head | Bookkeeper | Canada English |
| 42 | Sarah Irvine | 50 | Sister | — | Canada English |
| 43 | Lenore Irvine | 26 | Grandniece | New Worker | Canada English |
| 44 | Mary Richardson | 61 | Head | — | Canada English |
| 45 | William Richardson | 22 | Son | Packer | Massachusetts |
| 46 | Eleanor Richardson | 20 | Daughter | Sole Maker | Massachusetts |
| 47 | Estella Maynard | 60 | Head | Domestic | Canada English |
| 48 | Rita Thompson | 58 | Cousin | Stitcher | Canada English |
| 49 | James Schipani | 54 | Head | Laborer | Italy |
| 50 | Mary Schipani | 53 | Wife | — | Italy |
| 51 | Ida Schipani | 28 | Daughter | New Worker | New York |
| 52 | Gilbert Schipani | 24 | Son | Custodian | Massachusetts |
| 53 | Frances Schipani | 22 | Daughter | New Worker | New Hampshire |
| 54 | Theodore Schipani | 20 | Son | New Worker | Massachusetts |
| 55 | John Murphy | 51 | Head | Mill Operator | Irish Free State |
| 56 | Annie Murphy | 39 | Wife | — | England |
| 57 | Kevin Murphy | 18 | Son | — | Massachusetts |
| 58 | John Murphy | 16 | Son | — | Massachusetts |
| 59 | Florence Murphy | 13 | Son | — | Massachusetts |
| 60 | Francis Murphy | 11 | Son | — | Massachusetts |
| 61 | Ellen Barry | 70 | Head | — | Irish Free State |
| 62 | Helen Barry | 34 | Daughter | Statistician | Massachusetts |
| 63 | John Corcoran | 64 | Head | Site Layer | Massachusetts |
| 64 | Marie Corcoran | 55 | Wife | — | Massachusetts |
| 65 | John Connolly | 65 | Head | Salesman | Irish Free State |
| 66 | Agnes Connolly | 65 | Wife | — | Irish Free State |
| 67 | James Connolly THIS PERSON | 24 | Son | Truck Driver | Massachusetts |
| 68 | William Connolly | 19 | Son | — | Massachusetts |
| 69 | John Harrington | 41 | Head | Mail Carrier | Massachusetts |
| 70 | Ruth Harrington | 31 | Wife | — | Massachusetts |
| 71 | Paul Harrington | 4 | Son | — | Massachusetts |
| 72 | John Harrington | 2 | Son | — | Massachusetts |
| 73 | Julia Ward | 45 | Head | Machine Operator | Massachusetts |
| 74 | Rita Jones | 45 | Lodger | Clerk | Canada English |
| 75 | Edmund Hillhouse | 41 | Head | Cable Operator | Massachusetts |
| 76 | Imelda Hillhouse | 37 | Wife | — | Massachusetts |
| 77 | Bernice Hillhouse | 16 | Daughter | — | Massachusetts |
| 78 | Edmund Hillhouse | 15 | Son | — | Massachusetts |
| 79 | Ursula Hillhouse | 9 | Daughter | — | Rhode Island |
| 80 | Audrey Hillhouse | 4 | Daughter | — | Massachusetts |
Related Census Records
Pedigree Summary
James + 1 sibling
Gen 1 · 4 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)