JC
James Connelly — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Brookings, South Dakota
Our Model Tree links this James Connelly across the 1920, 1930 and 1940 US Censuses in Brookings, South Dakota (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 4-person household.
Age 39
b. ~1891
Male
Head
Born: South Dakota
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Brookings, South Dakota |
| Surname | Connelly |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Age at First Marriage | 24 |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Canada-Eng |
| Additional Details | |
| Occupation | Buttermaker |
| Industry | Dairy |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Radio Set | R |
| Veteran | No |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Buttermaker |
| Township / Ward | Brookings City |
| Est. Birth Year | ~1891 |
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 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Kathryn Connelly | Other | — | 32 | ~1898 |
| Merrill Connelly | Son | — | 10 | ~1920 |
| James Connelly | Head | — | 39 | ~1891 |
| Mary Connelly | Daughter | — | 8 | ~1922 |
Census Appearances
1920
Brookings, South …
Head, age 28
Brookings, South Dakota · implied b. ~1892 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connelly |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Canada |
| Occupation | Police |
| Industry | City |
| Class of Worker | W. |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Brookings, South …
Head, age 39
Brookings, South Dakota · implied b. ~1891 — 4 household members
| Surname | Connelly |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Age at First Marriage | 24 |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Canada-Eng |
| Occupation | Buttermaker |
| Industry | Dairy |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Radio Set | R |
| Veteran | No |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Brookings-County, South …
Head, age 49
Brookings-County, South Dakota · implied b. ~1891 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connely |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Brookings City |
| 1935 Residence (County) | Brookings |
| Occupation | Chief of Police |
| Industry | City |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 1920 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
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.
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This person
Anchor record
James Connelly
Head · 1930 · age 39 · b. ~1891 · South Dakota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Brookings, South Dakota
Open full size
1930 US Federal Census — Brookings, South Dakota
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2218unit:0256)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Earl Bartling | 38 | Head | Retail Merchant | Iowa |
| 52 | Daisy Bartling | 39 | Wife-H | — | Vermont |
| 53 | Margaret Bartling | 16 | Daughter | — | Minnesota |
| 54 | Lawrence Bartling | 15 | Son | — | Minnesota |
| 55 | George Bartling | 13 | Son | — | Minnesota |
| 56 | Caroline Bartling | 7 | Daughter | — | South Dakota |
| 57 | Robert Bartling | 3 | Son | — | South Dakota |
| 58 | Herbert Bartling | 0 | Son | — | South Dakota |
| 59 | Maurice Oystad | 43 | Head | President | North Dakota |
| 60 | Alma Oystad | 44 | Wife-H | — | Minnesota |
| 61 | Howard Oystad | 15 | Son | — | North Dakota |
| 62 | Ione Oystad | 11 | Daughter | — | South Dakota |
| 63 | Betty Oystad | 9 | Daughter | — | South Dakota |
| 64 | Thomas Linker | 81 | Head | — | Wisconsin |
| 65 | Margaret Linker | 78 | Wife-H | — | Wisconsin |
| 66 | Arthur Linker | 49 | Son | Blacksmith | Minnesota |
| 67 | George Renstrom | 40 | Head | Proprietor | Minnesota |
| 68 | Hilda Renstrom | 40 | Wife-H | — | Minnesota |
| 69 | Mary A Hall | 86 | Head | — | New York |
| 70 | Nellie Youngberg | 50 | Daughter | — | Minnesota |
| 71 | Kenneth Norris | 40 | Head | Conductor | Wisconsin |
| 72 | Anna Norris | 38 | Wife-H | — | South Dakota |
| 73 | Kenneth Norris | 15 | Son | — | South Dakota |
| 74 | Robert Norris | 13 | Son | — | South Dakota |
| 75 | Dorothy Norris | 9 | Daughter | — | South Dakota |
| 76 | Lyle Iverson | 26 | Head | Deliveryman | South Dakota |
| 77 | Amelia Iverson | 26 | Wife-H | — | South Dakota |
| 78 | John Larson | 40 | Head | Patrol | Wisconsin |
| 79 | Laura Larson | 34 | Wife-H | — | Iowa |
| 80 | Alice Larson | 12 | Daughter | — | South Dakota |
| 81 | Patricia Larson | 3 | Daughter | — | South Dakota |
| 82 | Isaac Thompson | 71 | Head | — | Illinois |
| 83 | Sophia Thompson | 69 | Wife-H | — | Norway |
| 84 | Lawrence Bjornson | 31 | Lodger | Auditor | South Dakota |
| 85 | James Isaacson | 26 | Lodger | Bookkeeper | South Dakota |
| 86 | Clarence Wrelsford | 29 | Head | Machinist | South Dakota |
| 87 | Viola Wrelsford | 25 | Wife-H | — | South Dakota |
| 88 | Mavis Wrelsford | 6 | Daughter | — | South Dakota |
| 89 | Arlo Wrelsford | 3 | Son | — | South Dakota |
| 90 | James Connelly THIS PERSON | 39 | Head | Buttermaker | South Dakota |
| 91 | Kathryn Connelly | 32 | Wife-H | — | South Dakota |
| 92 | Merrill Connelly | 10 | Son | — | South Dakota |
| 93 | Mary Connelly | 8 | Daughter | — | South Dakota |
| 94 | John Alton | 64 | Head | Deputy Auditor | Wisconsin |
| 95 | Dora Alton | 32 | Daughter | Stenographer | Minnesota |
| 96 | Charles Alton | 31 | Son | — | South Dakota |
| 97 | Emily Archibald | 58 | Head-H | Librarian | Indiana |
| 98 | Jean Archibald | 27 | Daughter | Instructor | Minnesota |
| 99 | Elizabeth Hanson | 64 | Head-H | — | Wisconsin |
| 100 | Anna Hanson | 41 | Daughter | Treasurer | South Dakota |
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)