RH
Robert Harper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lane-County, Oregon
Our Model Tree links this Robert Harper across the 1910, 1920, 1930 and 1940 US Censuses in Lane-County, Oregon (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 4-person household.
Age 51
b. ~1889
Male
Head
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lane-County, Oregon |
| Surname | Harper |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Long Tom |
| 1935 Residence (County) | Lane |
| Additional Details | |
| Occupation | Farmer |
| Industry | Gen Farm |
| Class of Worker | OA |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Farmer |
| Township / Ward | Long Tom |
| Est. Birth Year | ~1889 |
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 |
|---|---|---|---|---|
| Robert Harper | Head | — | 51 | ~1889 |
| James Harper | Son | — | 5 | ~1935 |
| Alan Harper | Son | — | 10 | ~1930 |
| Cora Harper | Spouse | — | 40 | ~1900 |
Census Appearances
1910
Lane, Oregon
Head, age 21
Lane, Oregon · implied b. ~1889
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Harper |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Farmer |
| Industry | farm |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1920
Lane, Oregon
Head, age 31
Lane, Oregon · implied b. ~1889 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Manager |
| Industry | Lumber mill |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Year of Naturalization | R |
| Birthplace (normalized) | wisconsin |
1930
Lane, Oregon
Head, age 41
Lane, Oregon · implied b. ~1889 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 22 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Millman |
| Industry | Saw mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 20 |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Lane-County, Oregon
Head, age 51
Lane-County, Oregon · implied b. ~1889 — 4 household members
| Surname | Harper |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Long Tom |
| 1935 Residence (County) | Lane |
| Occupation | Farmer |
| Industry | Gen Farm |
| Class of Worker | OA |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Harper across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Harper
Head · 1940 · age 51 · b. ~1889 · Oregon
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Lane-County, Oregon
Open full size
1940 US Federal Census — Lane-County, Oregon
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03369-00338)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gregory J. Stroda | 45 | Head | Farmer | Kansas |
| 2 | Lois I. Stroda | 37 | Wife | — | Oregon |
| 3 | Barbara J. Stroda | 16 | Daughter | — | Oregon |
| 4 | June E. Stroda | 15 | Daughter | — | Oregon |
| 5 | Robert L. Stroda | 7 | Son | — | Oregon |
| 6 | Gregory L. Stroda | 5 | Son | — | Oregon |
| 7 | Henry R. Kand | 69 | Head | — | Montana |
| 8 | Cora J. Kand | 50 | Wife | — | Oregon |
| 9 | Lowther S. Stay | 55 | Head | Farmer | Missouri |
| 10 | Ida N. Stay | 47 | Wife | — | Wyoming |
| 11 | William A. Winney | 45 | Head | Farmer | Nebraska |
| 12 | Edith A. Winney | 35 | Sister-in-law | — | Missouri |
| 13 | Bettie K. Winney | 11 | Daughter | — | Wisconsin |
| 14 | Jacob E. Wyatt | 50 | Hiredman | Farm Labor | Oregon |
| 15 | Lyon E. Gifford | 29 | Head | Labor Sawmill | Oregon |
| 16 | Eva M. Gifford | 33 | Wife | — | Oregon |
| 17 | Rose C. Gifford | 4 | Daughter | — | Oregon |
| 18 | Alva M. Gifford | 2 | Daughter | — | Oregon |
| 19 | Frank E. Gifford | 1 | Son | — | Oregon |
| 20 | Vincent R. Glover | 35 | Head | Farmer | Colorado |
| 21 | Constance M. Glover | 37 | Wife | — | Oregon |
| 22 | Gerald H. Timms | 37 | Hiredman | Farm Labor | Montana |
| 23 | Emma J. Timms | 33 | House Keeper | House Keeper | Ohio |
| 24 | Clyde R. Glover | 34 | Hiredman | Farm Labor | Colorado |
| 25 | Harry D. Harpman | 32 | Head | — | Iowa |
| 26 | Bettie B. Harpman | 21 | Wife | — | Iowa |
| 27 | Ralph C. Glover | 40 | Head | Saw Mill | Colorado |
| 28 | Luvela L. Glover | 36 | Wife | — | Missouri |
| 29 | Rolant A. Cox | 44 | Head | Farmer | Oregon |
| 30 | Mabel R. Cox | 42 | Wife | — | Oregon |
| 31 | Clive V. Smith | 39 | Head | Farm Labor | Oregon |
| 32 | Hazel E. Smith | 30 | Wife | — | Oregon |
| 33 | Beverly J. Smith | 2 | Daughter | — | Oregon |
| 34 | Jefferson D. Cox | 77 | Head | — | Oregon |
| 35 | David C. Cox | 20 | Son | Farm Labor | Oregon |
| 36 | Robert Harper THIS PERSON | 51 | Head | Farmer | Wisconsin |
| 37 | Cora E. Harper | 40 | Wife | — | Wisconsin |
| 38 | Alan Harper | 10 | Son | — | Oregon |
| 39 | James Harper | 5 | Son | — | Oregon |
| 40 | R. Gilbert | 37 | Head | Sawmill | Canada |
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)