RD
Robert Davidson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Arlington-County, Virginia
Our Model Tree links this Robert Davidson across the 1920, 1930 and 1940 US Censuses in Arlington-County, Virginia (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 3-person household.
Age 62
b. ~1878
Male
Head
Born: Utah
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Arlington-County, Virginia |
| Surname | Davidson |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Arlington |
| 1935 Residence (County) | Arlington |
| Additional Details | |
| Occupation | electrical engineer |
| Industry | War Dept. |
| Class of Worker | GW |
| Hours Worked | 39 |
| Income (1939) | 3300 |
| Highest Grade | C 4 |
| 1935 Residence | Same House |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Electrical Engineer |
| Est. Birth Year | ~1878 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Ada Davidson | Spouse | — | 63 | ~1877 |
| Hugh Davidson | Son | — | 25 | ~1915 |
| Robert Davidson | Head | — | 62 | ~1878 |
Census Appearances
1920
Alexandria, Virginia
Head, age 42
Alexandria, Virginia · implied b. ~1878 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davidson |
| Given Name | Robert N. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Utah |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Elect. Eng. |
| Industry | Govt Service |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1930
Arlington, Virginia
Head, age 52
Arlington, Virginia · implied b. ~1878 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davidson |
| Given Name | Robert M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Utah |
| Age at First Marriage | 24 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Tracing |
| Industry | U.S. Gov. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 10,000 |
| Veteran | No |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Arlington-County, Virginia
Head, age 62
Arlington-County, Virginia · implied b. ~1878 — 3 household members
| Surname | Davidson |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Arlington |
| 1935 Residence (County) | Arlington |
| Occupation | electrical engineer |
| Industry | War Dept. |
| Class of Worker | GW |
| Hours Worked | 39 |
| Income (1939) | 3300 |
| Highest Grade | C 4 |
| 1935 Residence | Same House |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
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 Davidson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Robert Davidson
Head · 1940 · age 62 · b. ~1878 · Virginia
★ 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 — Arlington-County, Virginia
Open full size
1940 US Federal Census — Arlington-County, Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04245-00274)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward W Janson | 42 | Head | Chief Accountant | Dist. Col. |
| 2 | Anna M Janson | 41 | Wife | — | Pennsylvania |
| 3 | Lars Janson | 20 | Son | Bookkeeper | Dist. Col. |
| 4 | Barbara Janson | 16 | Daughter | — | Dist. Col. |
| 5 | Leonard Janson | 14 | Son | — | Dist. Col. |
| 6 | Carolyn Janson | 5 | Daughter | — | Dist. Col. |
| 7 | Carolyn Cooke | 29 | Lodger | Clerk | No. Carolina |
| 8 | Susan Cooke | 5 | Lodger's daughter | — | Dist. Col. |
| 9 | Leslie Quackenbush | 70 | Head | — | New York |
| 10 | Leslie Phillips | 42 | Son-in-law | Accountant | Dist. Col. |
| 11 | Leslie Jr Phillips | 18 | Grandson | — | Dist. Col. |
| 12 | Lucille S Hutchison | 40 | Lodger | Saleswoman | Virginia |
| 13 | Clarence Nickleson | 46 | Head | Senior Economist | Iowa |
| 14 | Ellenore Nickleson | 47 | Wife | — | Iowa |
| 15 | Hume Nickleson | 20 | Son | — | Massachusetts |
| 16 | Don Nickleson | 19 | Son | — | California |
| 17 | Sterling Hamlett | 43 | Head | Caretaker | Virginia |
| 18 | Gaynelle Hamlett | 33 | Wife | — | Virginia |
| 19 | Pauley | Pearley Crocker | Crooker | 27 | Lodger | Typist | Michigan |
| 20 | Clarence Butchelet | 50 | Head | Geographer | Pennsylvania |
| 21 | Nellie Butchelet | 53 | Wife | — | Pennsylvania |
| 22 | Dorothy Butchelet | 22 | Daughter | Beautician | Dist. Col. |
| 23 | Eleanor Butchelet | 19 | Daughter | — | Dist. Col. |
| 24 | Thelma Butchelet | 16 | Daughter | — | Dist. Col. |
| 25 | Melissa Butchelet | 13 | Daughter | — | Dist. Col. |
| 26 | Clarence Jr Butchelet | 11 | Son | — | Dist. Col. |
| 27 | William Cameron | 36 | Head | Chief Safety Advisor | New York |
| 28 | Grace Cameron | 34 | Wife | — | Illinois |
| 29 | William S Cameron | 12 | Son | — | Ohio |
| 30 | John Cameron | 11 | Son | — | Ohio |
| 31 | Suzanne Cameron | 6 | Daughter | — | Ohio |
| 32 | Robert Davidson THIS PERSON | 62 | Head | Electrical Engineer | Utah |
| 33 | Ada Davidson | 63 | Wife | — | Michigan |
| 34 | Hugh Davidson | 25 | Son | — | Michigan |
| 35 | George Price | 35 | Head | Operating Engineer | Virginia |
| 36 | Faye Price | 42 | Wife | — | Virginia |
| 37 | Jerry Price | 6 | Son | — | Dist. Col. |
| 38 | Allan Anderson | 27 | Head | Truck Driver | Virginia |
| 39 | Margaret Anderson | 26 | Wife | — | Virginia |
| 40 | Franklin Anderson | 3 | Son | — | Dist. Col. |
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)