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John Connolly — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Jefferson, Kentucky
Our Model Tree links this John Connolly across the 1920, 1930 and 1940 US Censuses in Jefferson, Kentucky (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 10-person household.
Age 57
b. ~1873
Male
Head
Born: Kentucky
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Jefferson, Kentucky |
| Surname | Connolly |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 25 |
| Father's Birthplace | England |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Occupation | Physician |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Physician |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1873 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Paul Connolly | Son | — | 19 | ~1911 |
| Margaret Sullivan | Other | — | 48 | ~1882 |
| John Connolly | Head | — | 57 | ~1873 |
| Catherine Connolly | Other | — | 57 | ~1873 |
| Mary Connolly | Daughter | — | 16 | ~1914 |
| Sarah Sullivan | Other | — | 47 | ~1883 |
| Mary Sullivan | Other | — | 42 | ~1888 |
| Thomas Sullivan | Other | — | 52 | ~1878 |
| Maurice Connolly | Son | — | 17 | ~1913 |
| John Connolly | Son | — | 21 | ~1909 |
Census Appearances
1920
Jefferson, Kentucky
Head, age 46
Jefferson, Kentucky · implied b. ~1874 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connolly |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Mechanic |
| Industry | R. R. Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Head, age 57
Jefferson, Kentucky · implied b. ~1873 — 10 household members
| Surname | Connolly |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 25 |
| Father's Birthplace | England |
| Mother's Birthplace | Irish Free State |
| Occupation | Physician |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Head, age 67
Jefferson-County, Kentucky · implied b. ~1873 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connelly |
| Given Name | John G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Occupation | Doctor |
| Industry | Home Owned |
| Class of Worker | OA |
| Hours Worked | 40 |
| Highest Grade | C 4 |
| 1935 Residence | Same House |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 John Connolly across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Connolly
Head · 1930 · age 57 · b. ~1873 · Kentucky
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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 — Jefferson, Kentucky
Open full size
1930 US Federal Census — Jefferson, Kentucky
Page Contents
30 people indexed on this census page (ia:1930:kentuckycensus00reel756:0527)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 71 | Ann Hagan | 20 | Daughter | Clerk | Kentucky |
| 72 | James B. Hagan | 46 | Lodger | Conductor | Kentucky |
| 73 | Dan Bradshaw | 31 | Lodger | Loco Engineer | Kentucky |
| 74 | John J. Connolly THIS PERSON | 57 | Head | Physician | Kentucky |
| 75 | Catherine Connolly | 57 | Wife-H | — | Kentucky |
| 76 | John J. Jr. Connolly | 21 | Son | Clerk | Kentucky |
| 77 | Paul Connolly | 19 | Son | — | Kentucky |
| 78 | Maurice Connolly | 17 | Son | — | Kentucky |
| 79 | Mary Connolly | 16 | Daughter | — | Kentucky |
| 80 | Thomas M. Sullivan | 52 | Brother-in-law | Cabinetmaker | Kentucky |
| 81 | Sarah Sullivan | 47 | Sister-in-law | — | Kentucky |
| 82 | Margaret Sullivan | 48 | Sister-in-law | Nurse | Kentucky |
| 83 | Mary Sullivan | 42 | Sister-in-law | Clerk | Kentucky |
| 84 | Alvin Carnes | 44 | Head | Loco Engineer | Kentucky |
| 85 | Maud Carnes | 38 | Wife-H | — | Kentucky |
| 86 | James C. Carnes | 19 | Son | Newsboy | Kentucky |
| 87 | Mary Carnes | 15 | Daughter | — | Kentucky |
| 88 | Arvil Carnes | 14 | Son | Newsboy | Kentucky |
| 89 | John Carnes | 10 | Son | — | Kentucky |
| 90 | Nellie Carnes | 8 | Daughter | — | Kentucky |
| 91 | Jack Bivin | 24 | Head | Cleaner | Kentucky |
| 92 | Margaret Bivin | 24 | Wife-H | Clerk | Kentucky |
| 93 | Edward Snider | 55 | Head | Proprietor | Indiana |
| 94 | Emma C. Snider | 53 | Wife-H | Clerk | Indiana |
| 95 | George Snider | 23 | Son | Delivery | Kentucky |
| 96 | Guelda Snider | 19 | Daughter | Bookkeeper | Kentucky |
| 97 | Ida Snider | 17 | Daughter | Bookkeeper | Kentucky |
| 98 | Laura Snider | 16 | Daughter | — | Kentucky |
| 99 | Mayme Cunningham | 46 | Head-H | Proprietor | Kentucky |
| 100 | Porter Thompson | 35 | Boarder | Machinist Helper | Kentucky |
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)