JC
James Connelly — 1940 US Census Record
Model Tree available1940 United States Federal Census · Erie-County, New York
Our Model Tree links this James Connelly across the 1920, 1930 and 1940 US Censuses in Erie-County, New York (XGBoost, ~Confirmed), with identified parents George & James — first a son (b.~1917), then head of a 7-person household.
Age 23
b. ~1917
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Erie-County, New York |
| Surname | Connelly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Buffalo city |
| 1935 Residence (County) | Erie |
| Additional Details | |
| Occupation | Office Clerk |
| Industry | Newspaper |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 700 |
| Highest Grade | H-2 |
| 1935 Residence | Same Place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Office Clerk |
| Township / Ward | Buffalo City |
| Est. Birth Year | ~1917 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Helen Connelly | Spouse | — | 50 | ~1890 |
| Margaret Messinger | Other | — | 50 | ~1890 |
| James Connelly | Son | — | 23 | ~1917 |
| Margaret Connelly | Daughter | — | 16 | ~1924 |
| John Connelly | Son | — | 18 | ~1922 |
| Victor Connelly | Son | — | 11 | ~1929 |
| James Connelly | Head | — | 52 | ~1888 |
Census Appearances
Son, age 3
Erie, New York · implied b. ~1917 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connolly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Erie, New …
Son, age 13
Erie, New York · implied b. ~1917 — 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 | 13 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Erie-County, New …
Son, age 23
Erie-County, New York · implied b. ~1917 — 7 household members
| Surname | Connelly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Buffalo city |
| 1935 Residence (County) | Erie |
| Occupation | Office Clerk |
| Industry | Newspaper |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 700 |
| Highest Grade | H-2 |
| 1935 Residence | Same Place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Connelly across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Connelly (~0.92 confidence) and father James Connolly (~0.92 confidence) and father James Connelly (~0.92 confidence) and mother Anna Connelly (~0.92 confidence) and mother Helen Connolly (~0.92 confidence) and mother Helen Connelly (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Connelly
b. ~1885
Source father
● Household
· direct · ~0.92
Father
James Connolly
b. ~1889
Source father
● Household
· direct · ~0.92
Father
James Connelly
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Anna Connelly
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Helen Connolly
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Helen Connelly
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Connelly
Son · 1940 · age 23 · b. ~1917 · New York
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Sibling
John Connelly
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Connelly
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Victor Connelly
Sibling · 1940 · age 11
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 — Erie-County, New York
Open full size
1940 US Federal Census — Erie-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02836-00417)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William J. Witt | 44 | Head | Real Estate Broker | New York |
| 2 | Clara J. Witt | 56 | Wife | — | New York |
| 3 | Arthur Gaffney | 49 | Boarder | Salesman | New York |
| 4 | Ray W. Cann | 47 | Head | Foreman | New York |
| 5 | Viola B. Cann | 42 | Wife | — | New York |
| 6 | Doris A. Cann | 22 | Daughter | Stenographer | New York |
| 7 | Sarah Torrance | 76 | Head | — | New York |
| 8 | Lucille Torrance | 40 | Daughter | Stenographer | New York |
| 9 | Otto Werner | 58 | Head | Clerk | New York |
| 10 | Ida Werner | 56 | Wife | — | New York |
| 11 | Peter Ebel | 52 | Son-in-law | Clerk | New York |
| 12 | Edna Ebel | 48 | Daughter | — | New York |
| 13 | Philip Page | 45 | Head | Coal Salesman | Pennsylvania |
| 14 | Ruth Page | 45 | Wife | — | New York |
| 15 | Charles N. Page | 70 | Father | — | Maryland |
| 16 | Mary A. Page | 70 | Mother | — | Maryland |
| 17 | Max Rosokoff | 56 | Head | Merchant | Russia |
| 18 | Libby Rosokoff | 53 | Wife | Clerk | Russia |
| 19 | Joseph Rosokoff | 19 | Son | — | New York |
| 20 | Betty Rosokoff | 17 | Daughter | — | New York |
| 21 | Gert Haber | 70 | Mother-in-law | — | Russia |
| 22 | Edna Vallone | 18 | Servant | Servant | Canada-English |
| 23 | Benjamin Weinberg | 33 | Head | Tailor | Poland |
| 24 | Esther Weinberg | 28 | Wife | — | New York |
| 25 | Ruth Weinberg | 2 | Daughter | — | New York |
| 26 | Henry Pfeffer | 55 | Lodger | — | Rumania |
| 27 | Nathan Pfeffer | 30 | Lodger | Electrician | New York |
| 28 | James J. Connelly | 52 | Head | Assistant Master Mechanic | New York |
| 29 | Helen Connelly | 50 | Wife | — | New York |
| 30 | James Connelly THIS PERSON | 23 | Son | Office Clerk | New York |
| 31 | John Connelly | 18 | Son | — | New York |
| 32 | Margaret Connelly | 16 | Daughter | — | New York |
| 33 | Victor Connelly | 11 | Son | — | New York |
| 34 | Margaret Messinger | 50 | Sister-in-law | Seamstress | New York |
| 35 | Sabina Hertly | 82 | Head | — | New York |
| 36 | Lenore Weinberg | 25 | Head | Chemist | Michigan |
| 37 | Mary Weinberg | 22 | Wife | — | Pennsylvania |
| 38 | Carol Weinberg | 0 | Daughter | — | New York |
| 39 | John H. Bryce | 33 | Head | Engineer | California |
| 40 | Elizabeth Bryce | 25 | Wife | — | Wisconsin |
Related Census Records
Pedigree Summary
James + 3 siblings
Gen 1 · 6 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)