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Charles Lynch — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marshall-County, Iowa
Our Model Tree links this Charles Lynch across the 1910, 1920, 1930 and 1940 US Censuses in Marshall-County, Iowa (XGBoost, ~Confirmed), with identified parents Charlie & Lulu — first a head (b.~1897), then head of a 5-person household.
Age 43
b. ~1897
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marshall-County, Iowa |
| Surname | Lynch |
| Given Name | Charles P. (Jr) |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Vienna township |
| 1935 Residence (County) | Marshall |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Vienna Township |
| Est. Birth Year | ~1897 |
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 Charles | Age | Birth yr |
|---|---|---|---|---|
| Robert Lynch | Son | — | 9 | ~1931 |
| Anna Lynch | Spouse | — | 31 | ~1909 |
| Charles Lynch | Head | — | 43 | ~1897 |
| Charles Lynch | Other | — | 80 | ~1860 |
| William Staley | Other | — | 74 | ~1866 |
Census Appearances
1910
Marshall, Iowa
Son, age 13
Marshall, Iowa · implied b. ~1897 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | Charles R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Marshall, Iowa
Son, age 23
Marshall, Iowa · implied b. ~1897 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | Charlie Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | Home Farm |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Marshall, Iowa
Son, age 33
Marshall, Iowa · implied b. ~1897 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | Charles R. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Marshall-County, Iowa
Head, age 43
Marshall-County, Iowa · implied b. ~1897 — 5 household members
| Surname | Lynch |
| Given Name | Charles P. (Jr) |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Vienna township |
| 1935 Residence (County) | Marshall |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| 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 Charles Lynch across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charlie Lynch (~0.92 confidence) and mother Lulu Lynch (~0.60 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.76
Father
Charlie Lynch
b. ~1860
Source father
● Household
· direct · ~0.92
Mother
Lulu Lynch
b. ~1888
Source mother
● Household
· direct · ~0.6
This person
Anchor record
Charles Lynch
Head · 1940 · age 43 · b. ~1897 · 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 — Marshall-County, Iowa
Open full size
1940 US Federal Census — Marshall-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01182-00988)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frances Zink | 34 | wife | Housewife | Iowa |
| 42 | John Zink | 9 | son | — | Iowa |
| 43 | Marsha Zink | 3 | daughter | — | Iowa |
| 44 | Jerry O. Sidwell | 52 | head | Farmer | Missouri |
| 45 | Anna Sidwell | 39 | wife | Housewife | Minnesota |
| 46 | Melvin Sidwell | 17 | son | Farm Laborer | Iowa |
| 47 | Maxine Sidwell | 17 | daughter | Housework | Iowa |
| 48 | Beverly Sidwell | 13 | daughter | — | Iowa |
| 49 | Milton Sidwell | 9 | son | — | Iowa |
| 50 | Forrest R. Rork | 40 | head | Farmer | Iowa |
| 51 | Nina M. Rork | 33 | wife | Housewife | Iowa |
| 52 | Jesse T. Lynch | 49 | head | Farmer | Iowa |
| 53 | Gladys M. Lynch | 38 | wife | Housewife | Iowa |
| 54 | Charles P. (Jr) Lynch THIS PERSON | 43 | head | Farmer | Iowa |
| 55 | Anna Lynch | 31 | wife | Housewife | Iowa |
| 56 | Robert Lynch | 9 | son | — | Iowa |
| 57 | Charles P. (Sr) Lynch | 80 | father | Retired Farmer | Illinois |
| 58 | William G. Staley | 74 | uncle | Farm Laborer | Iowa |
| 59 | Harry J. Swenden | 43 | head | Farmer | Iowa |
| 60 | Rosa Swenden | 34 | wife | Housewife | Iowa |
| 61 | Doris Swenden | 9 | daughter | — | Iowa |
| 62 | Helen Swenden | 8 | daughter | — | Iowa |
| 63 | Richard Swenden | 6 | son | — | Iowa |
| 64 | James Swenden | 4 | son | — | Iowa |
| 65 | Fred M. Delfs | 47 | head | Farmer | Iowa |
| 66 | Anna Delfs | 41 | wife | Housewife | Iowa |
| 67 | John W. Dyer | 53 | head | Farmer | Iowa |
| 68 | Nellie Dyer | 49 | wife | Housewife | Iowa |
| 69 | Kenneth Dyer | 25 | son | Cashier | Iowa |
| 70 | Eileen Dyer | 18 | daughter | Housework | S. Dakota |
| 71 | Robert Dyer | 22 | son | Assembling Parts | Iowa |
| 72 | Edith Dyer | 17 | daughter-in-law | Housewife | Iowa |
| 73 | Howard Dyer | 0 | grandson | — | Iowa |
| 74 | Leroy M. Barger | 57 | head | Farmer | Iowa |
| 75 | Margaret Barger | 50 | wife | Housewife | Iowa |
| 76 | Oliver Henderson | 84 | father-in-law | Retired Farmer | Iowa |
| 77 | Carl Sebert | 40 | hired hand | Hired Hand | Iowa |
| 78 | Harry H. Harms | 29 | head | Farmer | Iowa |
| 79 | Mary Harms | 22 | wife | Housewife | Iowa |
| 80 | Sharon Harms | 2 | daughter | — | Iowa |
Related Census Records
Pedigree Summary
Charles
Gen 1 · 2 parents
~0.76
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)