JH
James Hickman — 1940 US Census Record
Model Tree available1940 United States Federal Census · Warren-County, Iowa
Our Model Tree links this James Hickman across the 1920, 1930 and 1940 US Censuses in Warren-County, Iowa (XGBoost, ~Confirmed), with identified parents Herman & Lula — first a son (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Warren-County, Iowa |
| Surname | Hickman |
| Given Name | James R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Rural |
| 1935 Residence (County) | Warren |
| Additional Details | |
| Occupation | Salesman |
| Industry | Leather Goods |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 500 |
| Highest Grade | Hs 4 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Salesman |
| Township / Ward | Indianola City |
| Est. Birth Year | ~1919 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Lula Hickman | Head | — | 36 | ~1904 |
| James Hickman | Son | — | 21 | ~1919 |
| Elizabeth Hickman | Daughter | — | 17 | ~1923 |
Census Appearances
1920
Warren, Iowa
Son, age 1
Warren, Iowa · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hickman |
| Given Name | James Rodgers |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Warren, Iowa
Son, age 11
Warren, Iowa · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hickman |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Warren-County, Iowa
Son, age 21
Warren-County, Iowa · implied b. ~1919 — 3 household members
| Surname | Hickman |
| Given Name | James R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Rural |
| 1935 Residence (County) | Warren |
| Occupation | Salesman |
| Industry | Leather Goods |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 500 |
| Highest Grade | Hs 4 |
| 1935 Residence | Iowa |
| 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 James Hickman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Herman Hickman (~0.92 confidence) and mother Lula Hickman (~0.92 confidence) and mother Lulu Hickman (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Herman Hickman
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Lula Hickman
b. ~1904
Source mother
● Household
· direct · ~0.92
Mother
Lulu Hickman
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Hickman
Son · 1940 · age 21 · b. ~1919 · Iowa
★ You are viewing this record
Sibling
Elizabeth Hickman
Sibling · 1940 · age 17
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 — Warren-County, Iowa
Open full size
1940 US Federal Census — Warren-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01210-00417)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | — | 33 | — | Elevator | — |
| 2 | — | 13 | — | — | — |
| 3 | Wm F Haines | 78 | Head | — | Iowa |
| 4 | Cassie L Sadler | 83 | Head | — | Pennsylvania |
| 5 | John L Main | 61 | Head | Nursing | Illinois |
| 6 | Florence A Main | 62 | Wife | — | Illinois |
| 7 | John Copathorne | 21 | Roomer | — | Massachusetts |
| 8 | William Weigand | 22 | Roomer | — | New Jersey |
| 9 | John Earl Eldridge | 48 | Head | Commerce Commissioner | Iowa |
| 10 | Ila May Eldridge | 48 | Wife | — | Iowa |
| 11 | Wilma Crowe | 33 | Roomer | Bookkeeper | Wisconsin |
| 12 | Lula Hickman | 36 | Head | Housewife | Iowa |
| 13 | James R Hickman THIS PERSON | 21 | Son | Salesman | Iowa |
| 14 | Elizabeth Hickman | 17 | Daughter | — | Iowa |
| 15 | Charley Frazer | 51 | Head | Sta. Agent | Iowa |
| 16 | Maude Frazer | 48 | Wife | Manager | Iowa |
| 17 | Elva May | 52 | Head | Teacher | Iowa |
| 18 | Ruby Vanhall | 21 | Roomer | Waitress | Iowa |
| 19 | Lois Nimrod | 18 | Roomer | Waitress | Iowa |
| 20 | A. J. Mcdole | 89 | Head | — | Iowa |
| 21 | Carrie B. Mcdole | 71 | Wife | — | Missouri |
| 22 | Charles Hester | 93 | Head | — | Illinois |
| 23 | Martha J. Hester | 89 | Wife | — | Illinois |
| 24 | Hattie J. Speer | 59 | Companion | Nursing | Iowa |
| 25 | George W. Westerly | 64 | Head | Common Laborer | Illinois |
| 26 | Elizabeth Westerly | 58 | Sister | — | Iowa |
| 27 | Rufus Murray | 56 | Head | Com. Laborer | Iowa |
| 28 | Katherine Murray | 53 | Wife | Sales Lady | Iowa |
| 29 | Russell Murray | 14 | Son | Carrier Salesman | Iowa |
| 30 | Ray Demory | 51 | Head | Office | Iowa |
| 31 | Hazel Demory | 49 | Wife | Housewife | Iowa |
| 32 | William Demory | 28 | Son | Com. Laborer | S. Dakota |
| 33 | Ralph Demory | 24 | Son | Packer & Shipper | Iowa |
| 34 | Glen Demory | 19 | Son | Labeler | Iowa |
| 35 | Gerald Demory | 15 | Son | Carrier Salesman | Iowa |
| 36 | Fern Demory | 11 | Daughter | — | Iowa |
| 37 | Arthur J. Barnett | 69 | Head | — | Iowa |
| 38 | Margaret D. Barnett | 67 | Wife | — | Iowa |
| 39 | Edith Butler | 17 | Granddau. | — | Iowa |
| 40 | Ruth Shearer | 37 | Daughter | — | Iowa |
Pedigree Summary
James + 1 sibling
Gen 1 · 3 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)