RB
Robert Bowman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Iowa
Our Model Tree links this Robert Bowman across the 1930 and 1940 US Censuses in Marion-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 12-person household.
Age 14
b. ~1926
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Iowa |
| Surname | Bowman |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Knoxville |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Knoxville |
| 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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Bonnie Bowman | Daughter | — | 12 | ~1928 |
| Robert Bowman | Son | — | 14 | ~1926 |
| James Bowman | Head | — | 46 | ~1894 |
| Maurice Bowman | Daughter | — | 17 | ~1923 |
| Inez Bowman | Daughter | — | 24 | ~1916 |
| Junior Bowman | Son | — | 21 | ~1919 |
| Florence Bowman | Spouse | — | 45 | ~1895 |
| Ronald Bowman | Son | — | 5 | ~1935 |
| Beverly Bowman | Daughter | — | 4 | ~1936 |
| Donald Bowman | Son | — | 5 | ~1935 |
| Tom Bowman | Son | — | 19 | ~1921 |
| Sherri Bowman | Daughter | — | 2 | ~1938 |
Census Appearances
1930
Marion, Iowa
Son, age 4
Marion, Iowa · implied b. ~1926 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bowman |
| Given Name | Robert T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Marion-County, Iowa
Son, age 14
Marion-County, Iowa · implied b. ~1926 — 12 household members
| Surname | Bowman |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Knoxville |
| 1935 Residence (County) | Marion |
| Highest Grade | 8 |
| 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 Robert Bowman across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Bowman
Son · 1940 · age 14 · b. ~1926 · Iowa
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Sibling
Junior Bowman
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sherri Bowman
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Inez Bowman
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Bowman
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ronald Bowman
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maurice Bowman
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bonnie Bowman
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Tom Bowman
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beverly Bowman
Sibling · 1940 · age 4
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 — Marion-County, Iowa
Open full size
1940 US Federal Census — Marion-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01181-00296)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harold Richards | 20 | Son | — | Iowa |
| 42 | Maxine Richards | 18 | Daughter | — | Iowa |
| 43 | Margaret Richards | 17 | Daughter | — | Iowa |
| 44 | Frances Richards | 13 | Daughter | — | Iowa |
| 45 | Roger Dwight Richards | 11 | Son | — | Iowa |
| 46 | Clara Richards | 77 | Mother | — | Iowa |
| 47 | Lula Richards | 48 | Sister | — | Iowa |
| 48 | Joseph Bloom | 70 | Head | — | Ill. |
| 49 | Annie Bloom | 68 | Wife | — | Ind. |
| 50 | George James Cuttery | 74 | Head | — | Iowa |
| 51 | Mitchell White | 34 | Head | Clerk | Iowa |
| 52 | Pauline White | 34 | Wife | — | Iowa |
| 53 | Patricia White | 4 | Daughter | — | Iowa |
| 54 | Harry Frey | 28 | Head | — | Iowa |
| 55 | Myrtle Frey | 21 | Wife | — | Iowa |
| 56 | Harry Edward Frey | 1 | Son | — | Iowa |
| 57 | John Mully | 35 | Head | Gardening | Ill. |
| 58 | Marie Mully | 26 | Wife | — | Ill. |
| 59 | John Timmons | 29 | Head | — | Ireland |
| 60 | Marcella Timmons | 27 | Daughter | — | Iowa |
| 61 | Francis Timmons | 9 | Son | — | Iowa |
| 62 | John Gordon Timmons | 5 | Son | — | Iowa |
| 63 | James Bowman | 46 | Head | Swing Room | Iowa |
| 64 | Florence Bowman | 45 | Wife | — | Iowa |
| 65 | Inez Bowman | 24 | Daughter | — | Iowa |
| 66 | Junior Bowman | 21 | Son | Lineman | Iowa |
| 67 | Tom Bowman | 19 | Son | — | Iowa |
| 68 | Maurice Bowman | 17 | Daughter | N.Y.A. | Iowa |
| 69 | Robert Bowman THIS PERSON | 14 | Son | — | Iowa |
| 70 | Bonnie Ruth Bowman | 12 | Daughter | — | Iowa |
| 71 | Ronald Bowman | 5 | Son | — | Iowa |
| 72 | Donald Bowman | 5 | Son | — | Iowa |
| 73 | Beverly Bowman | 4 | Daughter | — | Iowa |
| 74 | Sherri Lee Bowman | 2 | Daughter | — | Iowa |
| 75 | Allen Vaughan | 60 | Head | — | Iowa |
| 76 | Myrtle Vaughan | 60 | Wife | — | Iowa |
| 77 | Leo Jackson | 33 | Boarder | — | Iowa |
| 78 | Arthur Hilliard | 39 | Head | Attendant | Iowa |
| 79 | Martha Jane Hilliard | 22 | Wife | — | Iowa |
| 80 | Orval Hilliard | 6 | Son | — | 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)