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Harry Richardson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Knox-County, Illinois
Our Model Tree links this Harry Richardson across the 1920, 1930 and 1940 US Censuses in Knox-County, Illinois (XGBoost, ~Confirmed), with identified parents Marshall & Marshall — first a son (b.~1911), then head of a 5-person household.
Age 29
b. ~1911
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Illinois |
| Surname | Richardson |
| Given Name | Harry C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Galesburg |
| 1935 Residence (County) | Knox |
| Additional Details | |
| Occupation | assistant cashier |
| Industry | bank |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2108 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Assistant Cashier |
| Township / Ward | Galesburg |
| Est. Birth Year | ~1911 |
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 Harry | Age | Birth yr |
|---|---|---|---|---|
| Harry Richardson | Son | — | 29 | ~1911 |
| Jessie Richardson | Spouse | — | 55 | ~1885 |
| Dorothy Richardson | Daughter | — | 33 | ~1907 |
| William Richardson | Son | — | 26 | ~1914 |
| Marshall Richardson | Head | — | 54 | ~1886 |
Census Appearances
1920
Knox, Illinois
Son, age 9
Knox, Illinois · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Richardson |
| Given Name | Harry C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Knox, Illinois
Son, age 19
Knox, Illinois · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Richardson |
| Given Name | Harry C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Pennsylvania |
| Occupation | Bookkeeper |
| Industry | Bank |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Knox-County, Illinois
Son, age 29
Knox-County, Illinois · implied b. ~1911 — 5 household members
| Surname | Richardson |
| Given Name | Harry C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Galesburg |
| 1935 Residence (County) | Knox |
| Occupation | assistant cashier |
| Industry | bank |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2108 |
| 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 Harry Richardson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Marshall Richardson (~0.92 confidence) and father Marshall Richardson (~0.92 confidence) and mother Jessie Richardson (~0.92 confidence) and mother Jessie Richardson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Marshall Richardson
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Marshall Richardson
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Jessie Richardson
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Jessie Richardson
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Richardson
Son · 1940 · age 29 · b. ~1911 · Illinois
★ You are viewing this record
Sibling
William Richardson
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Richardson
Sibling · 1940 · age 33
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 — Knox-County, Illinois
Open full size
1940 US Federal Census — Knox-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00826-00525)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Sumner | 5 | Son | — | Illinois |
| 42 | Matilda Linrath | 41 | Head | — | Sweden |
| 43 | Thomas W. Frech | 70 | Head | — | Illinois |
| 44 | Mary Frech | 65 | Wife | — | Illinois |
| 45 | H. Walter Reader | 61 | Head | Superintendent | Ohio |
| 46 | Clara M. Reader | 60 | Wife | — | Missouri |
| 47 | Sophia Wallon | 89 | Head | — | Germany |
| 48 | Aaron Johnson | 28 | Head | Foreman | Iowa |
| 49 | Iva Johnson | 24 | Wife | — | Illinois |
| 50 | Alan Johnson | 5 | Son | — | Illinois |
| 51 | Charles Q. Aline | 50 | Head | — | Sweden |
| 52 | Anna V. Aline | 5 | Daughter | Seamstress | Sweden |
| 53 | Anna Johnson | 62 | Head | Laundress | Sweden |
| 54 | William E. West | 53 | Head | — | Illinois |
| 55 | Maude C. West | 52 | Wife | Chief Clerk | Nebraska |
| 56 | Barbara J. West | 18 | Daughter | — | Illinois |
| 57 | Willard H. Cabridge | 53 | Head | — | Illinois |
| 58 | George V. Cabridge | 69 | Brother | Druggist | Illinois |
| 59 | John W. Cabridge | 72 | Brother | Clerk | Illinois |
| 60 | Jennie Thomas | 59 | Head | — | Illinois |
| 61 | Edith Cole | 53 | Sister | — | Illinois |
| 62 | Maxine Cole | 19 | Niece | Saleslady | Illinois |
| 63 | Harold C. Heisler | 44 | Head | Electrician | Illinois |
| 64 | Chris Heisler | 82 | Father | — | Germany |
| 65 | Elinora Young | 56 | Servant | Housekeeping | Illinois |
| 66 | George J. Halloway | 82 | Head | — | Illinois |
| 67 | Margaret E. Halloway | 78 | Wife | — | New York |
| 68 | Leona Blackwell | 67 | Head | — | Illinois |
| 69 | Isaac W. Gregg | 56 | Head | Brick Burner | Missouri |
| 70 | Maude E. Gregg | 47 | Wife | — | Illinois |
| 71 | Frank E. Gregg | 26 | Son | Belt Boy | Illinois |
| 72 | Lawrence S. Gregg | 24 | Son | Janitor | Illinois |
| 73 | Edward L. Gregg | 20 | Son | Belt Boy | Illinois |
| 74 | Marshall Richardson | 54 | Head | Messenger | Illinois |
| 75 | Jessie Richardson | 55 | Wife | — | Pennsylvania |
| 76 | Dorothy Richardson | 33 | Daughter | Teacher | Illinois |
| 77 | Harry C. Richardson THIS PERSON | 29 | Son | Assistant Cashier | Illinois |
| 78 | William K. Richardson | 26 | Son | Lawyer | Illinois |
| 79 | Ben J. Dagg | 56 | Head | — | Illinois |
| 80 | Bess P. Dagg | 50 | Wife | — | Illinois |
Pedigree Summary
Harry + 2 siblings
Gen 1 · 4 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)