WW
William Welch — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wapello-County, Iowa
Our Model Tree links this William Welch across the 1920, 1930 and 1940 US Censuses in Wapello-County, Iowa (XGBoost, ~Confirmed), with identified parents Edith & Earl — first a son (b.~1917), then head of a 7-person household.
Age 23
b. ~1917
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wapello-County, Iowa |
| Surname | Welch |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Ottumwa City |
| 1935 Residence (County) | Wapello County |
| Additional Details | |
| Occupation | laborer |
| Industry | meat packing |
| Class of Worker | PW |
| Hours Worked | 34 |
| Income (1939) | 792 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Laborer |
| Township / Ward | Ottumwa City |
| Est. Birth Year | ~1917 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Marilyn Welch | Daughter | — | 12 | ~1928 |
| Doris Welch | Daughter | — | 14 | ~1926 |
| Thomas Welch | Head | — | 50 | ~1890 |
| Thomas Welch | Son | — | 25 | ~1915 |
| William Welch | Son | — | 23 | ~1917 |
| John Welch | Son | — | 10 | ~1930 |
| Edith Welch | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Wapello, Iowa
Son, age 3
Wapello, Iowa · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Wapello, Iowa
Son, age 13
Wapello, Iowa · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | William E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Wapello-County, Iowa
Son, age 23
Wapello-County, Iowa · implied b. ~1917 — 7 household members
| Surname | Welch |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Ottumwa City |
| 1935 Residence (County) | Wapello County |
| Occupation | laborer |
| Industry | meat packing |
| Class of Worker | PW |
| Hours Worked | 34 |
| Income (1939) | 792 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| 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 William Welch across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Edith Welch (~0.92 confidence) and father Earl Welch (~0.92 confidence) and father Thomas Welch (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Edith Welch
b. ~1887
Source mother
● Household
· direct · ~0.92
Father
Earl Welch
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Thomas Welch
b. ~1890
Source father
● Household
· direct · ~0.92
This person
Anchor record
William Welch
Son · 1940 · age 23 · b. ~1917 · Iowa
★ You are viewing this record
Sibling
Thomas Welch
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marilyn Welch
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Welch
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Welch
Sibling · 1940 · age 10
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 — Wapello-County, Iowa
Open full size
1940 US Federal Census — Wapello-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01209-00099)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Paul Dennis | 26 | Son | Clerk | Iowa |
| 2 | Stanley A. Haw | 37 | Head | Partner | Iowa |
| 3 | Matilda A. Haw | 36 | Wife | — | Pennsylvania |
| 4 | Stanley A. Jr. Haw | 11 | Son | — | Iowa |
| 5 | Edwin Haw | 8 | Son | — | Iowa |
| 6 | Joanna Haw | 4 | Daughter | — | Iowa |
| 7 | Sara Jackson | 24 | Servant | Servant | Iowa |
| 8 | Charles Worley | 42 | Head | Medical Doctor | Iowa |
| 9 | Ione Worley | 37 | Wife | — | Iowa |
| 10 | Charles Worley | 4 | Son | — | Iowa |
| 11 | Mary Worley | 2 | Daughter | — | Iowa |
| 12 | Loreen Frazer | 17 | Servant | Maid | Iowa |
| 13 | A. H. Smith | 50 | Head | Engineer | Iowa |
| 14 | Valesa Smith | 35 | Wife | — | Tennessee |
| 15 | Horton Smith | 17 | Son | Paper Carrier | Iowa |
| 16 | Connie Smith | 4 | Daughter | — | Iowa |
| 17 | Allen Bannister | 66 | Head | — | Ohio |
| 18 | Minnie Bannister | 62 | Wife | — | Iowa |
| 19 | Robert Taylor | 50 | Head | Manager | Tennessee |
| 20 | Lee Taylor | 49 | Wife | — | Tennessee |
| 21 | Phil Taylor | 23 | Son | — | Tennessee |
| 22 | Josephine Taylor | 21 | Daughter | — | Tennessee |
| 23 | Robert, Jr. Taylor | 10 | Son | — | Iowa |
| 24 | Lois Schilistrum | 18 | Servant | Maid | Iowa |
| 25 | C. B. Howell | 54 | Head | Medical Doctor | Iowa |
| 26 | Helen Howell | 53 | Wife | — | Iowa |
| 27 | Arthur Larson | 41 | Head | Salesman | Iowa |
| 28 | Harriett Larson | 40 | Wife | — | Iowa |
| 29 | Frank G. Lester | 34 | Head | Owner | Iowa |
| 30 | Jeanette Lester | 34 | Wife | — | Iowa |
| 31 | Frank E. Lester | 2 | Son | — | Iowa |
| 32 | Thomas Welch | 50 | Head | Conductor | Iowa |
| 33 | Edith Welch | 53 | Wife | — | Iowa |
| 34 | Thomas, Jr. Welch | 25 | Son | Truck Driver | Iowa |
| 35 | William Welch THIS PERSON | 23 | Son | Laborer | Iowa |
| 36 | Doris Welch | 14 | Daughter | — | Iowa |
| 37 | Marilyn Welch | 12 | Daughter | — | Iowa |
| 38 | John Welch | 10 | Son | — | Iowa |
| 39 | Luthern Mcinerney | 62 | Head | Trucker | Missouri |
| 40 | Josie Mcinerney | 59 | Wife | Finisher | Iowa |
Pedigree Summary
William + 4 siblings
Gen 1 · 3 parents
~0.92
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)