JD
John Doran — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Joseph-County, Indiana
Our Model Tree links this John Doran across the 1930 and 1940 US Censuses in St.-Joseph-County, Indiana (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 7-person household.
Age 12
b. ~1928
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Joseph-County, Indiana |
| Surname | Doran |
| Given Name | John Edward |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | South Bend |
| 1935 Residence (County) | St. Joseph |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | South Bend |
| Est. Birth Year | ~1928 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Doran | Daughter | — | 12 | ~1928 |
| Edna Doran | Spouse | — | 41 | ~1899 |
| Margaret Doran | Daughter | — | 13 | ~1927 |
| Marilyn Doran | Daughter | — | 5 | ~1935 |
| James Doran | Son | — | 8 | ~1932 |
| M Doran | Head | — | 44 | ~1896 |
| John Doran | Son | — | 12 | ~1928 |
Census Appearances
1930
St Joseph, …
Son, age 1
St Joseph, Indiana · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Doran |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
St.-Joseph-County, Indiana
Son, age 12
St.-Joseph-County, Indiana · implied b. ~1928 — 7 household members
| Surname | Doran |
| Given Name | John Edward |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | South Bend |
| 1935 Residence (County) | St. Joseph |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| 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 Doran across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Doran
Son · 1940 · age 12 · b. ~1928 · Indiana
★ You are viewing this record
Sibling
James Doran
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Doran
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marilyn Doran
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Doran
Sibling · 1940 · age 12
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 — St.-Joseph-County, Indiana
Open full size
1940 US Federal Census — St.-Joseph-County, Indiana
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01134-00633)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Henry Niemiec | 50 | brother | Clerk | Illinois |
| 42 | George Frohmonder | 46 | Head | Tool & Die Maker | Indiana |
| 43 | Louise Frohmonder | 47 | wife | — | Michigan |
| 44 | Thomas Frohmonder | 4 | son | — | Indiana |
| 45 | Lenore Frohmonder | 17 | daughter | — | Indiana |
| 46 | Raymond Ashby | 25 | Head | Polisher | Indiana |
| 47 | Anna Ashby | 23 | wife | Laborer | Indiana |
| 48 | Fannie Ashby | 57 | mother | — | Indiana |
| 49 | Sol Krug | 36 | Head | Vice Pres. | Lithuania |
| 50 | Lillian Krug | 34 | wife | — | Illinois |
| 51 | Edward H Krug | 1 | son | — | Indiana |
| 52 | Carl Schwenkendorf | 36 | Head | Accountant | Indiana |
| 53 | Mary Alice Schwenkendorf | 32 | wife | — | Indiana |
| 54 | James Allen Schwenkendorf | 4 | son | — | Indiana |
| 55 | Phyllis Schwenkendorf | 1 | daughter | — | Indiana |
| 56 | Albert E Schwartz | 33 | Head | Secretary | Illinois |
| 57 | Marie W Schwartz | 81 | mother | — | Austria |
| 58 | Wilford Brox | 41 | Head | Musician | Utah |
| 59 | Velma Brox | 37 | wife | — | Utah |
| 60 | Marjorie Brox | 15 | daughter | — | Iowa |
| 61 | Betty Brox | 9 | daughter | — | New York |
| 62 | Carol Brox | 5 | daughter | — | Indiana |
| 63 | Helen Swingendorf | 33 | Head | — | Indiana |
| 64 | Mary Louise Swingendorf | 7 | daughter | — | Indiana |
| 65 | Joyce Swingendorf | 5 | daughter | — | Indiana |
| 66 | Helen Flaherty | 18 | companion | Secretary | Indiana |
| 67 | Herbert P Affleder | 33 | Head | Assistant Manager | Illinois |
| 68 | Lucile Affleder | 31 | wife | — | Indiana |
| 69 | James W Bryan | 54 | Head | Advertising Salesman | Ohio |
| 70 | Katherine Bryan | 48 | wife | — | Ohio |
| 71 | Robert J. Bryan | 22 | son | — | Ohio |
| 72 | Kay Bryan | 18 | daughter | Advertising Department | Ohio |
| 73 | M. Edward Doran | 44 | Head | Attorney | Michigan |
| 74 | Edna M Doran | 41 | wife | — | Indiana |
| 75 | Margaret Ann Doran | 13 | daughter | — | Indiana |
| 76 | Mary Ann Doran | 12 | daughter | — | Indiana |
| 77 | John Edward Doran THIS PERSON | 12 | son | — | Indiana |
| 78 | James Wm Doran | 8 | son | — | Indiana |
| 79 | Marilyn Doran | 5 | daughter | — | Indiana |
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)