WP
William Perry — 1940 US Census Record
Model Tree available1940 United States Federal Census · Black-Hawk-County, Iowa
Our Model Tree links this William Perry across the 1920, 1930 and 1940 US Censuses in Black-Hawk-County, Iowa (XGBoost, ~Confirmed), with identified parents Edward & Maud — first a head (b.~1901), then head of a 5-person household.
Age 39
b. ~1901
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Black-Hawk-County, Iowa |
| Surname | Perry |
| Given Name | William C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Waterloo city |
| 1935 Residence (County) | Black Hawk |
| Additional Details | |
| Occupation | Foreman |
| Industry | Meat Packing House |
| Class of Worker | PW |
| Income (1939) | 1600 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Foreman |
| Township / Ward | Waterloo City |
| Est. Birth Year | ~1901 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Perry | Head | — | 39 | ~1901 |
| Donna Perry | Other | — | 12 | ~1928 |
| Patricia Perry | Other | — | 13 | ~1927 |
| Delbert Perry | Son | — | 15 | ~1925 |
| Miriam Perry | Spouse | — | 39 | ~1901 |
Census Appearances
1920
Black Hawk, …
Son, age 18
Black Hawk, Iowa · implied b. ~1902 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Perry |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Wisconsin |
| Occupation | Laborer |
| Industry | Packing house |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Black Hawk, …
Head, age 29
Black Hawk, Iowa · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Perry |
| Given Name | William E |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 22 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Wisconsin |
| Occupation | Foreman |
| Industry | Packing House |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | 20.00 |
| Veteran | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Black-Hawk-County, Iowa
Head, age 39
Black-Hawk-County, Iowa · implied b. ~1901 — 5 household members
| Surname | Perry |
| Given Name | William C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Waterloo city |
| 1935 Residence (County) | Black Hawk |
| Occupation | Foreman |
| Industry | Meat Packing House |
| Class of Worker | PW |
| Income (1939) | 1600 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Perry across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Perry (~0.92 confidence) and mother Maud Perry (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Perry
b. ~1864
Source father
● Household
· direct · ~0.92
Mother
Maud Perry
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Perry
Head · 1940 · age 39 · b. ~1901 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Black-Hawk-County, Iowa
Open full size
1940 US Federal Census — Black-Hawk-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01140-00827)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Geraldine Koundle | 32 | Wife | House Wife | Iowa |
| 42 | Beverly L. Koundle | 11 | Dtr | — | Iowa |
| 43 | Robert Koundle | 7 | Son | — | Iowa |
| 44 | Albert J. Dietrich | 36 | Head | Machinist | Iowa |
| 45 | Mabel V. Dietrich | 32 | Wife | House Wife | Iowa |
| 46 | William Dietrich | 5 | Adpt Son | — | Michigan |
| 47 | Donald Dietrich | 4 | Adpt Son | — | Michigan |
| 48 | Leo A. Winter | 41 | Head | Brake Man | Illinois |
| 49 | Ida A. Winter | 39 | Wife | House Wife | Illinois |
| 50 | Dean D. Winter | 14 | Son | — | Illinois |
| 51 | Paul E. Nieder | 32 | Head | Assembler | Iowa |
| 52 | Anna D. Nieder | 23 | Wife | House Wife | Iowa |
| 53 | Donald R. Nieder | 5 | Son | — | Iowa |
| 54 | Shirley Ann Nieder | 2 | Dtr | — | Iowa |
| 55 | Albert J. Westby | 68 | Head | — | Iowa |
| 56 | Marie Westby | 73 | Wife | House Wife | Iowa |
| 57 | Charles W. Reed | 32 | Head | Plant Worker | Iowa |
| 58 | Leona O. Reed | 32 | Wife | Plant Worker | Iowa |
| 59 | William Nieder | 64 | Br-in-law | Carpenter | Iowa |
| 61 | Samuel N. Guynn | 44 | Head | Machinist | Iowa |
| 62 | Geneva P. Guynn | 41 | Wife | House Wife | Iowa |
| 63 | June J. Edill | 22 | Niece | Servant | Iowa |
| 64 | Lloyd L. Edill | 18 | Nephew | New Worker | Iowa |
| 65 | Charles S. Harper | 74 | Head | Book Keeper | Indiana |
| 66 | Sarah E. Harper | 70 | Wife | House Wife | Indiana |
| 67 | William C. Perry THIS PERSON | 39 | Head | Foreman | Illinois |
| 68 | Miriam O. Perry | 39 | Wife | House Wife | Iowa |
| 69 | Delbert P. Perry | 15 | Son | — | Iowa |
| 70 | Patricia L. Perry | 13 | Dtr | — | Iowa |
| 71 | Donna F. Perry | 12 | Dtr | — | Iowa |
| 72 | Frank W. Troutfetter | 60 | Head | Plant Worker | Iowa |
| 73 | Kittie C. Troutfetter | 52 | Wife | House Wife | Iowa |
| 74 | Raymond A. Troutfetter | 29 | Son | City Salesman | Iowa |
| 75 | Maxine Troutfetter | 21 | Dtr | Clerk | Iowa |
| 76 | Kathryn I. Troutfetter | 16 | Dtr | — | Iowa |
| 77 | Walter Bowers | 47 | Head | Plant Worker | Iowa |
| 78 | Jet E. Bowers | 40 | Wife | Plant Worker | Iowa |
| 79 | James A. Bowers | 23 | Son | Butcher | Iowa |
| 80 | Marguerite A. Bowers | 21 | Dtr-in-law | House Wife | Iowa |
Pedigree Summary
William
Gen 1 · 2 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)