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Robert Welch — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Robert Welch across the 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 12-person household.
Age 12
b. ~1928
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Welch |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Indianapolis |
| 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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| William Welch | Son | — | 6 | ~1934 |
| Kathleen Welch | Daughter | — | 15 | ~1925 |
| Leo Welch | Head | — | 46 | ~1894 |
| Kathryn Welch | Spouse | — | 45 | ~1895 |
| James Welch | Son | — | 11 | ~1929 |
| Leo Welch | Son | — | 24 | ~1916 |
| Thomas Welch | Son | — | 18 | ~1922 |
| Virginia Welch | Daughter | — | 2 | ~1938 |
| Cornelia Welch | Daughter | — | 19 | ~1921 |
| Alice Welch | Daughter | — | 21 | ~1919 |
| Robert Welch | Son | — | 12 | ~1928 |
| John Welch | Son | — | 16 | ~1924 |
Census Appearances
1930
Marion, Indiana
Son, age 2
Marion, Indiana · implied b. ~1928 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Robert V |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Ohio |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 12
Marion-County, Indiana · implied b. ~1928 — 12 household members
| Surname | Welch |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| 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 Robert Welch across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Welch
Son · 1940 · age 12 · b. ~1928 · Indiana
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Sibling
Thomas Welch
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Welch
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cornelia Welch
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathleen Welch
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Welch
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Welch
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Welch
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Welch
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Welch
Sibling · 1940 · age 6
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
40 people indexed on this census page (nara:1940:m-t0627-01130-00918)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alice O. Johnwatt | 27 | Wife | — | Indiana |
| 2 | William Miller | 47 | Head | President | Tennessee |
| 3 | Agnes Miller | 47 | Wife | — | Indiana |
| 4 | Martin Miller | 17 | Son | — | Indiana |
| 5 | Janet Miller | 10 | Daughter | — | Indiana |
| 6 | Katie J. Miller | 72 | Mother | — | Tennessee |
| 7 | Joseph R. Carr | 54 | Head | — | Indiana |
| 8 | Ruby Carr | 21 | Son | Salesman | Indiana |
| 9 | Richard Carr | 18 | Son | — | Indiana |
| 10 | Elias W. Moore | 46 | Head | Salesman | Indiana |
| 11 | Margaret Moore | 38 | Wife | — | Indiana |
| 12 | Julia Moore | 7 | Daughter | — | Indiana |
| 13 | Margaret Stevens | 31 | Servant | Servant | Indiana |
| 14 | Edwin Dabney | 31 | Head | Owner | Illinois |
| 15 | Genevieve Dabney | 31 | Wife | — | Illinois |
| 16 | Nancy Dabney | 8 | Daughter | — | Illinois |
| 17 | Diana Dabney | 4 | Daughter | — | Illinois |
| 18 | Leo Welch | 46 | Head | President | Indiana |
| 19 | Kathryn Welch | 45 | Wife | — | Indiana |
| 20 | Leo S. Jr. Welch | 24 | Son | — | Indiana |
| 21 | Alice Welch | 21 | Daughter | — | Indiana |
| 22 | Cornelia Welch | 19 | Daughter | — | Indiana |
| 23 | Thomas Welch | 18 | Son | — | Indiana |
| 24 | John Welch | 16 | Son | — | Indiana |
| 25 | Kathleen Welch | 15 | Daughter | — | Indiana |
| 26 | Robert Welch THIS PERSON | 12 | Son | — | Indiana |
| 27 | James Welch | 11 | Son | — | Indiana |
| 28 | William Welch | 6 | Son | — | Indiana |
| 29 | Virginia Welch | 2 | Daughter | — | Indiana |
| 30 | John H. Morrison | 50 | Head | Vice President | Indiana |
| 31 | Hazel Morrison | 47 | Wife | Executive | Indiana |
| 32 | John Morrison | 18 | Son | — | Indiana |
| 33 | Nancy Morrison | 15 | Daughter | — | Indiana |
| 34 | Margaret Clare | 36 | Sister-in-law | Cashier | Indiana |
| 35 | Sally Mccurdy | 71 | Aunt | — | Indiana |
| 36 | Wm. Hausman | 63 | Head | Manager | Germany |
| 37 | Florence Hausman | 54 | Wife | — | Indiana |
| 38 | Ethel Thompson | 44 | Sister | Bookkeeper | Indiana |
| 39 | Louis Seyfert | 56 | Head | Dealer | Minnesota |
| 40 | Anna Seyfert | 56 | Wife | — | Indiana |
Related Census Records
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)