CP
Charles Pierce — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wapello-County, Iowa
Our Model Tree links this Charles Pierce across the 1920, 1930 and 1940 US Censuses in Wapello-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 3-person household.
Age 63
b. ~1877
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wapello-County, Iowa |
| Surname | Pierce |
| Given Name | Charles D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Ottumwa City |
| 1935 Residence (County) | Wapello County |
| Additional Details | |
| Occupation | Proprietor |
| Industry | Photo Finishing Studio |
| Class of Worker | OA |
| Hours Worked | 36 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Proprietor |
| Township / Ward | Ottumwa City |
| Est. Birth Year | ~1877 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Meda Pierce | Spouse | — | 59 | ~1881 |
| Charles Pierce | Head | — | 63 | ~1877 |
| Patricia Pierce | Daughter | — | 17 | ~1923 |
Census Appearances
1920
Wapello, Iowa
Head, age 43
Wapello, Iowa · implied b. ~1877 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pierce |
| Given Name | Charles D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Illinois |
| Occupation | Saleslady |
| Industry | Dry Goods |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Wapello, Iowa
Head, age 53
Wapello, Iowa · implied b. ~1877 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pierce |
| Given Name | Charles L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 24 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Photographer |
| Industry | Studio |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3500 |
| Radio Set | R |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Wapello-County, Iowa
Head, age 63
Wapello-County, Iowa · implied b. ~1877 — 3 household members
| Surname | Pierce |
| Given Name | Charles D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Ottumwa City |
| 1935 Residence (County) | Wapello County |
| Occupation | Proprietor |
| Industry | Photo Finishing Studio |
| Class of Worker | OA |
| Hours Worked | 36 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| 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 Charles Pierce across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Charles Pierce
Head · 1940 · age 63 · b. ~1877 · Iowa
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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-t0627-01209-00568)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Patricia Ann Mckinney | 2 | Daughter | — | Iowa |
| 42 | Donal Carbaugh | 55 | Head | Signalman | Illinois |
| 43 | Ora S Carbaugh | 48 | Wife | — | Illinois |
| 44 | Josephine Bonar | 36 | Maid | Maid | Iowa |
| 45 | Russell V. Fleming | 38 | Head | Salesman | Illinois |
| 46 | Merle D Fleming | 36 | Wife | — | Iowa |
| 47 | Elma D Dacha | 51 | Head | Teacher | Iowa |
| 48 | Belle S Slattery | 42 | Head | Bookkeeper | Iowa |
| 49 | Donna Slattery | 10 | Daughter | — | Iowa |
| 50 | Arthur A Wright | 76 | Head | — | Canada English |
| 51 | Etta W Wright | 69 | Wife | — | Illinois |
| 52 | Louis Sigmund | 58 | Head | Tent Maker | Illinois |
| 53 | Pearl Edna Sigmund | 54 | Wife | — | Iowa |
| 54 | Margaret Sigmund | 29 | Daughter | Bookkeeper | Illinois |
| 55 | Helen E Sigmund | 26 | Daughter | Bookkeeper | Iowa |
| 56 | Alice Matilda Sigmund | 23 | Daughter | Bookkeeper | Iowa |
| 57 | Lois V Sigmund | 14 | Daughter | — | Iowa |
| 58 | Lawrence M Truitt | 47 | Head | Lawyer And Abstracter | Illinois |
| 59 | Hazel D Truitt | 46 | Wife | — | Iowa |
| 60 | Carroll Truitt | 22 | Son | Office Clerk | Iowa |
| 61 | Jenkin D Richards | 39 | Head | Miner | Iowa |
| 62 | Mae Richards | 44 | Wife | — | Virginia |
| 63 | Robert F Richards | 0 | Son | — | Iowa |
| 64 | William P Gilbert | 65 | Head | Proprietor | Iowa |
| 65 | Laura E Gilbert | 69 | Wife | — | Illinois |
| 66 | Charles D Pierce THIS PERSON | 63 | Head | Proprietor | Illinois |
| 67 | Meda Pierce | 59 | Wife | — | Iowa |
| 68 | Patricia Pierce | 17 | Daughter | — | Iowa |
| 69 | Ralph L Williams | 53 | Head | Proprietor | Iowa |
| 70 | Gertrude Williams | 51 | Wife | — | Iowa |
| 71 | Adella Williams | 29 | Daughter | Receptionist | Iowa |
| 72 | William E Mesmer | 49 | Head | Proprietor | Iowa |
| 73 | Anna Mesmer | 55 | Wife | — | Iowa |
| 74 | Tom Peden | 48 | Head | Salesman | Iowa |
| 75 | Elma Peden | 55 | Wife | Saleslady | Iowa |
| 76 | Pauline Peden | 26 | Daughter | Operator | Iowa |
| 77 | Elizabeth Peden | 25 | Daughter | Bookkeeper | Iowa |
| 78 | Edward Peden | 21 | Son | Drug Clerk | Iowa |
| 79 | Maxine Schwartz | 24 | Step-daughter | Stenographer | Iowa |
| 80 | Albert Barnes | 27 | Head | Agent | Iowa |
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)