CP
Charles Pearson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Black-Hawk-County, Iowa
Our Model Tree links this Charles Pearson across the 1930 and 1940 US Censuses in Black-Hawk-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Black-Hawk-County, Iowa |
| Surname | Pearson |
| Given Name | Charles E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Waterloo City |
| 1935 Residence (County) | Black Hawk |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Waterloo City |
| Est. Birth Year | ~1926 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Russell Pearson | Son | — | 10 | ~1930 |
| Richard Pearson | Son | — | 12 | ~1928 |
| Lillian Pearson | Daughter | — | 17 | ~1923 |
| Elbert Pearson | Son | — | 19 | ~1921 |
| James Pearson | Son | — | 7 | ~1933 |
| Charles Pearson | Son | — | 14 | ~1926 |
| Dorothy Thomas | Daughter | — | 20 | ~1920 |
| Zula Pearson | Head | — | 46 | ~1894 |
Census Appearances
1930
Black Hawk, …
Son, age 4
Black Hawk, Iowa · implied b. ~1926 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Person |
| Given Name | Charles Edward |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Black-Hawk-County, Iowa
Son, age 14
Black-Hawk-County, Iowa · implied b. ~1926 — 8 household members
| Surname | Pearson |
| Given Name | Charles E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Waterloo City |
| 1935 Residence (County) | Black Hawk |
| Highest Grade | No 6 |
| 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 Charles Pearson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Charles Pearson
Son · 1940 · age 14 · b. ~1926 · Iowa
★ You are viewing this record
Sibling
Russell Pearson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Thomas
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Pearson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Pearson
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Pearson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elbert Pearson
Sibling · 1940 · age 19
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 — Black-Hawk-County, Iowa
Open full size
1940 US Federal Census — Black-Hawk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01140-01085)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jack J. O'Day | 33 | Head | Laborer | Kansas |
| 2 | John W. Childers | 50 | Head | Car Repairman | Missouri |
| 3 | Dora M. Childers | 52 | Wife | — | Mississippi |
| 4 | Percy H. Burt | 28 | Head | Butcher | Mississippi |
| 5 | Zellie Burt | 26 | Wife | — | Mississippi |
| 6 | Kathrine Burt | 6 | Daughter | — | Iowa |
| 7 | Percy Jr. Burt | 3 | Son | — | Iowa |
| 8 | George W. Van Arsdale | 57 | Head | Laborer | Kentucky |
| 9 | Elsie Van Arsdale | 18 | Daughter | House-Maid | Iowa |
| 10 | Edward Van Arsdale | 17 | Son | Laborer | Iowa |
| 11 | Ernest Van Arsdale | 14 | Son | — | Iowa |
| 12 | Delza Van Arsdale | 12 | Daughter | — | Iowa |
| 13 | Berthel Robinson | 24 | Daughter | — | Iowa |
| 14 | Lillian Robinson | 9 | Grand-daughter | — | Iowa |
| 15 | Robert Robinson | 7 | Grand-son | — | Iowa |
| 16 | Lawrence Bryant | 37 | Head | Foundry Man | Arkansas |
| 17 | Cornelia Bryant | 42 | Wife | — | Arkansas |
| 18 | Samuel Montjoy | 47 | Head | Janitor | Missouri |
| 19 | Louise Montjoy | 50 | Wife | — | Arkansas |
| 20 | Kathryn J. Montjoy | 17 | Daughter | — | Iowa |
| 21 | Scott Montjoy | 15 | Son | — | Iowa |
| 22 | Violet L. Montjoy | 11 | Son | — | Iowa |
| 23 | Joan M. Montjoy | 9 | Daughter | — | Iowa |
| 24 | Samuel A. Montjoy | 6 | Son | — | Iowa |
| 25 | Edward G. Dallow | 28 | Head | Porter | Illinois |
| 26 | Mae A. Dallow | 31 | Wife | — | Iowa |
| 27 | Constance M. Dallow | 3 | Daughter | — | Iowa |
| 28 | Zula M. Pearson | 46 | Head | — | Mississippi |
| 29 | Elbert H. Pearson | 19 | Son | Laborer | Iowa |
| 30 | Lillian C. Pearson | 17 | Daughter | — | Iowa |
| 31 | Charles E. Pearson THIS PERSON | 14 | Son | — | Iowa |
| 32 | Richard S. Pearson | 12 | Son | — | Iowa |
| 33 | Russell M. Pearson | 10 | Son | — | Iowa |
| 34 | James A. Pearson | 7 | Son | — | Iowa |
| 35 | Dorothy M. Thomas | 20 | Daughter | — | Iowa |
| 36 | Joseph D. Curry | 47 | Head | Laborer | Mississippi |
| 37 | Robert Howard | 48 | Head | Proprietor | Mississippi |
| 38 | Jennie Howard | 40 | Wife | — | Mississippi |
| 39 | William G. Lewis | 40 | Head | Foundry | Virginia |
| 40 | Elzada W. Lewis | 33 | Wife | — | 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)