RS
Robert Sharp — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pottawattamie-County, Iowa
Our Model Tree links this Robert Sharp across the 1920, 1930 and 1940 US Censuses in Pottawattamie-County, Iowa (XGBoost, ~Confirmed), with identified parents Anna — first a head (b.~1898), then head of a 4-person household.
Age 42
b. ~1898
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pottawattamie-County, Iowa |
| Surname | Sharp |
| Given Name | Robert H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Garner Township |
| 1935 Residence (County) | Pottawattamie |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 1000 |
| Highest Grade | No |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Garner Township |
| Est. Birth Year | ~1898 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Louisa Sharp | Spouse | — | 31 | ~1909 |
| Robert Sharp | Head | — | 42 | ~1898 |
| Robert Sharp | Son | — | 10 | ~1930 |
| Harold Sharp | Son | — | 8 | ~1932 |
Census Appearances
1920
Pottawattamie, Iowa
Son, age 22
Pottawattamie, Iowa · implied b. ~1898 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sharp |
| Given Name | Robert H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | England |
| Mother's Birthplace | Canada |
| Occupation | Farmer |
| Industry | At Home |
| Class of Worker | Emp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Pottawattamie, Iowa
Head, age 32
Pottawattamie, Iowa · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sharp |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 29 |
| Father's Birthplace | England |
| Mother's Birthplace | Canada |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Radio Set | R |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Pottawattamie-County, Iowa
Head, age 42
Pottawattamie-County, Iowa · implied b. ~1898 — 4 household members
| Surname | Sharp |
| Given Name | Robert H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Garner Township |
| 1935 Residence (County) | Pottawattamie |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 1000 |
| Highest Grade | No |
| 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 Sharp across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Anna Sharp (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Anna Sharp
b. ~1864
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Sharp
Head · 1940 · age 42 · b. ~1898 · 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 — Pottawattamie-County, Iowa
Open full size
1940 US Federal Census — Pottawattamie-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01199-00869)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marie B. Smith | 32 | Daughter | Housekeeper | Iowa |
| 42 | Addison Q. Nelson | 48 | Head | Farmer | Nebraska |
| 43 | Lodie B. Nelson | 43 | Wife | Housekeeper | Nebraska |
| 44 | Lloyd A. Nelson | 18 | Son | Farm Laborer | Minnesota |
| 45 | Edwin Nelson | 16 | Son | Farm Laborer | Nebraska |
| 46 | Herbert A. Nelson | 28 | Son | Farmer | Iowa |
| 47 | Betty R. Nelson | 20 | Daughter-in-law | Housekeeper | Nebraska |
| 48 | Herbert A. Nelson | 1 | Grandson | — | Iowa |
| 49 | Richard Lee Nelson | 0 | Grandson | — | Iowa |
| 50 | Fritz Mollenhauer | 36 | Head | Farmer | Germany |
| 51 | Lena G. Mollenhauer | 34 | Wife | Housekeeper | Iowa |
| 52 | Joshua H. Rice | 81 | Head | — | Ohio |
| 53 | Anna B. Rice | 66 | Wife | — | Iowa |
| 54 | Delmer J. Rice | 39 | Son | Farmer | Iowa |
| 55 | Frieda R. Rice | 38 | Daughter-in-law | Housewife | Wisconsin |
| 56 | Ruth E. Rice | 5 | Daughter | — | Iowa |
| 57 | John A. Hakley | 36 | Head | Farmer | Iowa |
| 58 | Frieda A. Hakley | 32 | Wife | Housekeeper | Iowa |
| 59 | Marlene M. Hakley | 5 | Daughter | — | Iowa |
| 60 | Gary Lynn Hakley | 5 | Son | — | Iowa |
| 61 | Marilyn G. Hakley | 4 | Daughter | — | Iowa |
| 62 | Viola M. Mauer | 25 | Servant | Servant | Iowa |
| 63 | Ray Gundel | 32 | Hired man | Hired Hand | Iowa |
| 64 | Jack C. Sullivan | 18 | Lodger | Hired Hand | Nebraska |
| 65 | Paul H. Scott | 32 | Head | Farmer | Iowa |
| 66 | Eunice T. Scott | 24 | Wife | Housekeeper | Iowa |
| 67 | Clyde Goodman | 30 | Head | Farmer | Iowa |
| 68 | Irene Goodman | 30 | Wife | Housekeeper | Missouri |
| 69 | Everett G. Myers | 32 | Head | Railroad Laborer | Minnesota |
| 70 | Florine M. Myers | 33 | Wife | Housekeeper | Kentucky |
| 71 | Joseph F. Myers | 9 | Son | — | Iowa |
| 72 | John R. Myers | 6 | Son | — | Iowa |
| 73 | James E. Myers | 4 | Son | — | Iowa |
| 74 | Henry W. Kerrill | 52 | Head | Farmer | Iowa |
| 75 | Marguerite S. Kerrill | 47 | Wife | Housekeeper | Iowa |
| 76 | Dean L. Kerrill | 20 | Son | Farmer | Iowa |
| 77 | Robert H. Sharp THIS PERSON | 42 | Head | Farmer | Iowa |
| 78 | Louisa G. Sharp | 31 | Wife | Housekeeper | Iowa |
| 79 | Robert B. Sharp | 10 | Son | — | Iowa |
| 80 | Harold L. Sharp | 8 | Son | — | Iowa |
Pedigree Summary
Robert
Gen 1 · 1 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)