JC
John Connelly — 1930 US Census Record
Model Tree available1930 United States Federal Census · Jackson, Iowa
Our Model Tree links this John Connelly across the 1920, 1930 and 1940 US Censuses in Jackson, Iowa (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1914), then head of a 5-person household.
Age 16
b. ~1914
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Jackson, Iowa |
| Surname | Connelly |
| Given Name | John P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farm Laborer |
| Township / Ward | Prairie Springs Township |
| Est. Birth Year | ~1914 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Connelly | Head | — | 59 | ~1871 |
| Wilhelmina Connelly | Other | — | 54 | ~1876 |
| Sylvester Connelly | Son | — | 21 | ~1909 |
| Kitty Connelly | Daughter | — | 25 | ~1905 |
| John Connelly | Son | — | 16 | ~1914 |
Census Appearances
1920
Jackson, Iowa
Son, age 5
Jackson, Iowa · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connolly |
| Given Name | John Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Jackson, Iowa
Son, age 16
Jackson, Iowa · implied b. ~1914 — 5 household members
| Surname | Connelly |
| Given Name | John P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
Son, age 26
Jackson-County, Iowa · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connolly |
| Given Name | John P |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Prairie Springs |
| 1935 Residence (County) | Jackson |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Connelly across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Connolly (~0.92 confidence) and father John Connolly (~0.92 confidence) and mother Minnie Connolly (~0.92 confidence) and mother Minnie Connolly (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Connolly
b. ~1871
Source father
● Household
· direct · ~0.92
Father
John Connolly
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Minnie Connolly
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Minnie Connolly
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Connelly
Son · 1930 · age 16 · b. ~1914 · Iowa
★ You are viewing this record
Sibling
Kitty Connelly
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sylvester Connelly
Sibling · 1930 · age 21
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 — Jackson, Iowa
Open full size
1930 US Federal Census — Jackson, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel660:0410)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Peter Nees | 60 | Head | Farmer | Iowa |
| 2 | Elizabeth Nees | 59 | Wife-H | — | Iowa |
| 3 | Aloys Nees | 17 | Daughter | — | Iowa |
| 4 | Jacob Hoffmann | 55 | Head | Farmer | Iowa |
| 5 | Mary Hoffmann | 46 | Wife-H | — | Oregon |
| 6 | Leroy Hoffmann | 19 | Son | Farm Laborer | Iowa |
| 7 | Marcella Hoffmann | 14 | Daughter | — | Iowa |
| 8 | Edward Hoffmann | 11 | Son | — | Iowa |
| 9 | John F. Connelly | 59 | Head | Farmer | Iowa |
| 10 | Wilhelmina Connelly | 54 | Wife-H | — | Iowa |
| 11 | Kitty Connelly | 25 | Daughter | Servant | Iowa |
| 12 | Sylvester Connelly | 21 | Son | Farm Laborer | Iowa |
| 13 | John P. Connelly THIS PERSON | 16 | Son | Farm Laborer | Iowa |
| 14 | Frank Capania | 36 | Head | Farmer | Iowa |
| 15 | Anna Capania | 30 | Wife-H | — | Iowa |
| 16 | Merlin Capania | 9 | Son | — | Iowa |
| 17 | Rosella Capania | 6 | Daughter | — | Iowa |
| 18 | Robert Capania | 3 | Son | — | Iowa |
| 19 | Cornelius O'Brien | 65 | Head | Farmer | Iowa |
| 20 | Mary O'Brien | 57 | Wife-H | — | Iowa |
| 21 | Leo O'Brien | 34 | Son | Farm Laborer | Iowa |
| 22 | Charles O'Brien | 25 | Son | Farm Laborer | Iowa |
| 23 | Dennis Guerdet | 32 | Head | Farmer | Iowa |
| 24 | Mary Guerdet | 21 | Wife-H | — | Iowa |
| 25 | James Guerdet | 2 | Son | — | Iowa |
| 26 | Reginald Guerdet | 0 | Son | — | Iowa |
| 27 | Anton Guerdet | 68 | Father | Farmer | Iowa |
| 28 | Nicholas D. Kramer | 33 | Boarder | Farm Laborer | Germany |
| 29 | Carl Lenz | 24 | Head | Farmer | Iowa |
| 30 | Lolita Lenz | 23 | Wife-H | — | Iowa |
| 31 | Melvin Lenz | 1 | Son | — | Iowa |
| 32 | Rose Lenz | 54 | Mother | Servant | Iowa |
| 33 | Leo Lynch | 11 | Cousin | — | South Dakota |
| 34 | Joseph Knothil | 46 | Head | Farmer | Iowa |
| 35 | Elizabeth Knothil | 37 | Wife-H | — | Iowa |
| 36 | Joseph Jr. Knothil | 12 | Son | — | Iowa |
| 37 | Howard Knothil | 11 | Son | — | Iowa |
| 38 | Creda Knothil | 10 | Daughter | — | Iowa |
| 39 | Walter Knothil | 8 | Son | — | Iowa |
| 40 | Leo Knothil | 5 | Son | — | Iowa |
| 41 | Leona Knothil | 5 | Daughter | — | Iowa |
| 42 | Elmer Knothil | 4 | Son | — | Iowa |
| 43 | Maggie Knothil | 2 | Daughter | — | Iowa |
| 44 | Rita Knothil | 1 | Daughter | — | Iowa |
| 45 | James Mueller | 55 | Head | Farmer | Iowa |
| 46 | Mary Mueller | 43 | Wife-H | — | Iowa |
| 47 | Raymond Mueller | 8 | Son | — | Iowa |
| 48 | Marcella Mueller | 17 | Daughter | Servant | Iowa |
| 49 | Clarence Mueller | 15 | Son | Farm Laborer | Iowa |
| 50 | Olinda Mueller | 11 | Daughter | — | Iowa |
Related Census Records
Pedigree Summary
John + 2 siblings
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 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)