JC
James Connelly — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Alameda, California
Our Model Tree links this James Connelly across the 1930 and 1940 US Censuses in Alameda, California (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 8-person household.
Age 7
b. ~1923
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Alameda, California |
| Surname | Connelly |
| Given Name | James J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Northern Ireland |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Oakland City Part |
| Est. Birth Year | ~1923 |
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 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Bernard Connelly | Son | — | 14 | ~1916 |
| Edward Connelly | Son | — | 4 | ~1926 |
| James Connelly | Son | — | 7 | ~1923 |
| Rose Connelly | Spouse | — | 42 | ~1888 |
| John Connelly | Son | — | 11 | ~1919 |
| Leo Connelly | Son | — | 9 | ~1921 |
| Joseph Connelly | Head | — | 44 | ~1886 |
| Joseph Connelly | Son | — | 1 | ~1929 |
Census Appearances
1930
Alameda, California
Son, age 7
Alameda, California · implied b. ~1923 — 8 household members
| Surname | Connelly |
| Given Name | James J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Northern Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Alameda-County, California
Son, age 17
Alameda-County, California · implied b. ~1923 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connolly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Connelly
Son · 1930 · age 7 · b. ~1923 · California
★ You are viewing this record
Sibling
Joseph Connelly
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Connelly
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Connelly
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernard Connelly
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Connelly
Sibling · 1930 · 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
1930 US Federal Census — Alameda, California
Open full size
1930 US Federal Census — Alameda, California
Page Contents
50 people indexed on this census page (ia:1930:15thcensuspopula103unit:0494)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | M Evelyn | 17 | Daughter | None | California |
| 2 | William K Evelyn | 12 | Son | None | California |
| 3 | Arthur S Gunn | 43 | Head | Proprietor | California |
| 4 | Arthur S Jr Gunn | 15 | Son | Salesman | California |
| 5 | Robert Gunn | 13 | Son | None | California |
| 6 | Richard Gunn | 11 | Son | None | California |
| 7 | Donald Gunn | 8 | Son | None | California |
| 8 | Luther R Fowler | 33 | Head | Inspector | Virginia |
| 9 | Marion H Fowler | 28 | Wife | Bookkeeper | Virginia |
| 10 | Hans P Sorensen | 58 | Head | Contractor | Denmark |
| 11 | Anna Sorensen | 51 | Wife | None | Denmark |
| 12 | Hazel H Sorensen | 22 | Daughter | Contractor | California |
| 13 | Wright H Pope | 46 | Head | Civil Engineer | Canada English |
| 14 | Marie H Pope | 44 | Wife | None | California |
| 15 | Virginia G Pope | 16 | Daughter | None | California |
| 16 | Francis Pope | 13 | Son | None | California |
| 17 | Agnes J Pope | 10 | Daughter | None | California |
| 18 | Frederick W Pope | 8 | Son | None | California |
| 19 | Andrew Forslund | 71 | Head | Cabinet Maker | Sweden |
| 20 | Ida H Forslund | 62 | Wife | None | Sweden |
| 21 | Arthur Forslund | 26 | Son | Clerk | Sweden |
| 22 | Walter Forslund | 24 | Son | None | Sweden |
| 23 | Thomas S Berry | 62 | Head | None | Pennsylvania |
| 24 | Ida H Berry | 62 | Wife | None | New York |
| 25 | John W Grace | 57 | Head | Farmer | New York |
| 26 | Ida H Grace | 51 | Wife | None | California |
| 27 | Margaret S Logie | 52 | Head | Dressmaker | Irish Free State |
| 28 | Patrick S Logie | 24 | Son | Cashier | Australia |
| 29 | John S Higgins | 64 | Head | None | California |
| 30 | Mary H Higgins | 50 | Wife | None | California |
| 31 | Floyd P Dumphrey | 22 | Head | Merchant Marine | Nebraska |
| 32 | Evelyn M Dumphrey | 20 | Wife | None | Wyoming |
| 33 | John S Dress | 50 | Head | Civil Engineer | Canada English |
| 34 | Bessie S Dress | 54 | Wife | Proprietor | Wyoming |
| 35 | Lloyd K Dress | 14 | Son | Electrician | Rhode Island |
| 36 | James J Jr Dress | 13 | Son | None | Arizona |
| 37 | Mary S Dress | 35 | Boarder | Bookkeeper | Colorado |
| 38 | Joseph A Connelly | 44 | Head | Policeman | Irish Free State |
| 39 | Rose M Connelly | 42 | Wife | None | Northern Ireland |
| 40 | Bernard J Connelly | 14 | Son | None | California |
| 41 | John J Connelly | 11 | Son | None | California |
| 42 | Leo J Connelly | 9 | Son | None | California |
| 43 | James J Connelly THIS PERSON | 7 | Son | None | California |
| 44 | Edward M Connelly | 4 | Son | None | California |
| 45 | Joseph J Jr Connelly | 1 | Son | None | California |
| 46 | Josiah L Hickey | 66 | Head | Grader | Ohio |
| 47 | Lilla Hickey | 64 | Wife | None | California |
| 48 | Claude L Hickey | 37 | Son | Butcher | California |
| 49 | Mabel Hickey | 31 | Daughter | Bookkeeper | California |
| 50 | Arthur S Jr Foy | 45 | Head | Clerk | Sweden |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)