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Robert Welch — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ottawa-County, Ohio
Our Model Tree links this Robert Welch across the 1930 and 1940 US Censuses in Ottawa-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 9-person household.
Age 19
b. ~1921
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ottawa-County, Ohio |
| Surname | Welch |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Clay Township |
| 1935 Residence (County) | Ottawa |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Farmer |
| Township / Ward | Clay Township |
| Est. Birth Year | ~1921 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Edward Mccormick | Other | — | 26 | ~1914 |
| La Mccormick | Other | — | ~1940 | |
| Harry Welch | Son | — | 26 | ~1914 |
| Daisy Mccormick | Daughter | — | 25 | ~1915 |
| Robert Welch | Son | — | 19 | ~1921 |
| Marie Welch | Spouse | — | 50 | ~1890 |
| Ralph Welch | Head | — | 64 | ~1876 |
| Jeanette Welch | Daughter | — | 21 | ~1919 |
| Virginia Welch | Daughter | — | 23 | ~1917 |
Census Appearances
1930
Ottawa, Ohio
Son, age 9
Ottawa, Ohio · implied b. ~1921 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Ottawa-County, Ohio
Son, age 19
Ottawa-County, Ohio · implied b. ~1921 — 9 household members
| Surname | Welch |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Clay Township |
| 1935 Residence (County) | Ottawa |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 19 · b. ~1921 · Ohio
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Sibling
Harry Welch
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Welch
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daisy Mccormick
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeanette Welch
Sibling · 1940 · 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
1940 US Federal Census — Ottawa-County, Ohio
Open full size
1940 US Federal Census — Ottawa-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03125-00253)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Michael Miller | 50 | Head | Inspector | Germany |
| 2 | Amelia Miller | 49 | Wife | — | Germany |
| 3 | Carl Miller | 21 | Son | Farmer | Ohio |
| 4 | Ruth Miller | 12 | Daughter | — | Ohio |
| 5 | James Veyck | 58 | Head | Farmer | Czechoslovakia |
| 6 | Frank Dennis | 30 | Head | Laborer | Wisconsin |
| 7 | Edna M. Dennis | 25 | Wife | — | Ohio |
| 8 | Frank Dennis | 2 | Son | — | Ohio |
| 9 | David Dennis | 0 | Son | — | Ohio |
| 10 | Samuel Kodor | 66 | Head | — | Ohio |
| 11 | Tessie Kodor | 62 | Wife | — | Ohio |
| 12 | Stephen Kodor | 39 | Son | Farmer | Ohio |
| 13 | Carl C. Held | 40 | Head | Laborer | Ohio |
| 14 | Josephine Held | 32 | Wife | — | Ohio |
| 15 | Delores Held | 11 | Daughter | — | Ohio |
| 16 | Charles W. Held | 7 | Son | — | Ohio |
| 17 | Charlotte A. Held | 6 | Daughter | — | Ohio |
| 18 | Henry C. Nuhfer | 78 | Father-in-law | — | Ohio |
| 19 | Christian Widmer | 91 | Head | — | Germany |
| 20 | Lena Widmer | 78 | Wife | — | Ohio |
| 21 | Carl Widmer | 41 | Son | Operator | Ohio |
| 22 | Frank Klevenger | 62 | Head | Laborer | Hungary |
| 23 | Frederick Otte | 54 | Head | Farmer | Ohio |
| 24 | Cora Otte | 52 | Wife | — | Ohio |
| 25 | Donald Otte | 20 | Son | Farmer | Ohio |
| 26 | Alex Jones | 53 | Head | Farmer | Ohio |
| 27 | Cecile Jones | 49 | Wife | — | Ohio |
| 28 | Ralph Welch | 64 | Head | Farmer | Ohio |
| 29 | Marie Welch | 50 | Wife | — | Ohio |
| 30 | Harry Welch | 26 | Son | Laborer | Ohio |
| 31 | Daisy Mccormick | 25 | Daughter | — | Ohio |
| 32 | Virginia Welch | 23 | Daughter | Maid | Ohio |
| 33 | Jeanette Welch | 21 | Daughter | Stenographer | Ohio |
| 34 | Robert Welch THIS PERSON | 19 | Son | Farmer | Ohio |
| 35 | Edward Mccormick | 26 | Son-in-law | Blue Printer | Michigan |
| 36 | La Donna Mccormick | 0 | Gr-Daughter | — | Ohio |
| 37 | August H. Bothe | 64 | Head | — | Ohio |
| 38 | Hattie B. Bothe | 61 | Wife | — | Ohio |
| 39 | Mildred Magee | 23 | Daughter | — | Ohio |
| 40 | Clayton D. Magee | 29 | Son-in-law | Machinist | Ohio |
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)