JC
John Connor — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this John Connor across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents John & Kate — first a son (b.~1909), then head of a 8-person household.
Age 31
b. ~1909
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Connor |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Highest Grade | Hs 2 |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1909 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Alice Connor | Daughter | — | 36 | ~1904 |
| Mary Connor | Daughter | — | 40 | ~1900 |
| John Connor | Head | — | 67 | ~1873 |
| Delia Dugan | Other | — | 55 | ~1885 |
| John Connor | Son | — | 31 | ~1909 |
| Thomas Connor | Son | — | 33 | ~1907 |
| Joseph Connor | Son | — | 38 | ~1902 |
| Catherine Connor | Spouse | — | 70 | ~1870 |
Census Appearances
1920
Marion, Indiana
Son, age 11
Marion, Indiana · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connor |
| Given Name | John Francis |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 21
Marion, Indiana · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connor |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 31
Marion-County, Indiana · implied b. ~1909 — 8 household members
| Surname | Connor |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Highest Grade | Hs 2 |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Connor across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Connor (~0.81 confidence) and mother Kate Connor (~0.81 confidence) and mother Mary Connor (~0.81 confidence) and mother Catherine Connor (~0.92 confidence) and mother Catherine Connor (~0.92 confidence) and father John Connor (~0.92 confidence) and father John Connor (~0.92 confidence) and father Michel Connor (~0.92 confidence). The pedigree spans 2 generations with 8 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.88
Father
John Connor
b. ~1838
Source father>father
● Household
· direct · ~0.81
Mother
Kate Connor
b. ~1842
Source father>mother
● Household
· direct · ~0.81
Mother
Mary Connor
b. ~1842
Source father>mother
● Household
· direct · ~0.81
Mother
Catherine Connor
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Catherine Connor
b. ~1873
Source mother
● Household
· direct · ~0.92
Father
John Connor
b. ~1873
Source father
● Household
· direct · ~0.92
Father
John Connor
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Michel Connor
b. ~1880
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Connor
Son · 1940 · age 31 · b. ~1909 · Indiana
★ You are viewing this record
Sibling
Joseph Connor
Sibling · 1940 · age 38
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Connor
Sibling · 1940 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Connor
Sibling · 1940 · age 36
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Connor
Sibling · 1940 · age 40
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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01132-00309)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 42 | John Connor | 67 | Head | — | Indiana |
| 43 | Catherine Connor | 70 | Wife | — | Indiana |
| 44 | Mary Connor | 40 | Daughter | City Employee | Indiana |
| 45 | Joseph Connor | 38 | Son | Billiard Room | Indiana |
| 46 | Alice Connor | 36 | Daughter | Federal Dept | Indiana |
| 47 | Thomas Connor | 33 | Son | Municipal | Indiana |
| 48 | John Connor THIS PERSON | 31 | Son | — | Indiana |
| 49 | Delia Dugan | 55 | Sister-in-law | Music Pub | Indiana |
| 50 | Gilbert Komsthoeft | 42 | Head | Farm Implement Co. | Kentucky |
| 51 | Edna R. Komsthoeft | 37 | Wife | No | Kentucky |
| 52 | Herman J. Lantz | 47 | Head | Chain Factory | Indiana |
| 53 | Clara S. Lantz | 44 | Wife | No | Indiana |
| 54 | Donald Lantz | 24 | Son | Rubber Company | Indiana |
| 55 | Lester Lantz | 20 | Son | C. E. C. | Indiana |
| 56 | Robert Lantz | 16 | Son | — | Indiana |
| 57 | Anthony Lantz | 9 | Son | — | Indiana |
| 58 | Mary Lantz | 9 | Daughter | — | Indiana |
| 59 | Eileen Lantz | 8 | Daughter | — | Indiana |
| 60 | Thomas Lantz | 5 | Son | — | Indiana |
| 61 | Emma E. Marshall | 54 | Head | — | Indiana |
| 62 | Irma Marshall | 24 | Daughter | Nut Company | Indiana |
| 63 | Lois Mann | 65 | Lodger | — | Indiana |
| 64 | Janice Mann | 6 | Lodger | — | Indiana |
| 65 | Elsie Mann | 7 | Lodger | — | Indiana |
| 66 | John Dugan | 50 | Head | Utility Company | Ireland |
| 67 | Maria A. Dugan | 44 | Wife | No | Ireland |
| 68 | John J. Dugan | 22 | Son | Grocery Warehouse | Indiana |
| 69 | Mary M. Dugan | 20 | Daughter | Drug Store | Indiana |
| 70 | Patrick Dugan | 19 | Son | Grocery Store | Indiana |
| 71 | Bill Dugan | 14 | Son | — | Indiana |
| 72 | Anna Catherine Dugan | 12 | Daughter | — | Indiana |
| 73 | Helen Theresa Dugan | 9 | Daughter | — | Indiana |
| 74 | Effie Schyder | 65 | Head | Yes | Indiana |
| 76 | Frederick H. Grimm | 33 | Head | Aluminum Co. | Illinois |
| 77 | Stella M. Grimm | 35 | Wife | Telephone Co. | Indiana |
| 78 | Lawrence B. Strother | 15 | Son | — | Indiana |
| 79 | Michael J. Healey | 55 | Head | Steam Railroad | England |
| 80 | Margaret R. Healey | 49 | Wife | No | Indiana |
Pedigree Summary
John + 4 siblings
Gen 1 · 5 parents
~0.92
Gen 2 · 3 grandparents
~0.81
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)