GR
George Robertson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Boone-County, Iowa
Our Model Tree links this George Robertson across the 1920, 1930 and 1940 US Censuses in Boone-County, Iowa (XGBoost, ~Confirmed), with identified parents George & Margaret — first a head (b.~1893), then head of a 6-person household.
Age 47
b. ~1893
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Boone-County, Iowa |
| Surname | Robertson |
| Given Name | George, D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Des Moines Twp. |
| 1935 Residence (County) | Boone |
| Additional Details | |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 494 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Miner |
| Township / Ward | Des Moines Twp |
| Est. Birth Year | ~1893 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to George | Age | Birth yr |
|---|---|---|---|---|
| Merle Robertson | Son | — | 9 | ~1931 |
| Donald Robertson | Son | — | 2 | ~1938 |
| Nellie Robertson | Spouse | — | 24 | ~1916 |
| Clayton Robertson | Son | — | 5 | ~1935 |
| Paul Robertson | Son | — | 4 | ~1936 |
| George Robertson | Head | — | 47 | ~1893 |
Census Appearances
1920
Boone, Iowa
Head, age 28
Boone, Iowa · implied b. ~1892 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robertson |
| Given Name | George |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Colorado |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Miner |
| Industry | Coalmine |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Boone, Iowa
Son, age 37
Boone, Iowa · implied b. ~1893 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robertson |
| Given Name | George Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Divorced |
| Birthplace | Colorado |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Digger |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Boone-County, Iowa
Head, age 47
Boone-County, Iowa · implied b. ~1893 — 6 household members
| Surname | Robertson |
| Given Name | George, D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Des Moines Twp. |
| 1935 Residence (County) | Boone |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 494 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 George Robertson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Robertson (~0.92 confidence) and mother Margaret Robertson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Robertson
b. ~1854
Source father
● Household
· direct · ~0.92
Mother
Margaret Robertson
b. ~1863
Source mother
● Household
· direct · ~0.92
This person
Anchor record
George Robertson
Head · 1940 · age 47 · b. ~1893 · 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 — Boone-County, Iowa
Open full size
1940 US Federal Census — Boone-County, Iowa
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01141-00511)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Austin, E. Bentley | 2 | Son | — | Iowa |
| 42 | Arthur, L. Castello | 50 | Head | Farmer | Iowa |
| 43 | Daisy, E. Castello | 48 | Wife | — | Iowa |
| 44 | Eugene, A. Woodward | 7 | Grand-son | — | Iowa |
| 45 | Anna, G. Gasker | 89 | Mother-in-law | — | Iowa |
| 46 | John, R. Robertson | 34 | Head | Labor | Iowa |
| 47 | Zola, E. Robertson | 28 | Wife | Housework | Iowa |
| 48 | Jackie, B. Robertson | 1 | Son | — | Iowa |
| 49 | Lazarus Bennett | 68 | Head | — | Iowa |
| 50 | George, D. Robertson THIS PERSON | 47 | Head | Miner | Colorado |
| 51 | Nellie, M. Robertson | 24 | Wife | — | Iowa |
| 52 | Merle, L. Robertson | 9 | Son | — | Iowa |
| 53 | Clayton, D. Robertson | 5 | Son | — | Iowa |
| 54 | Paul, Dean Robertson | 4 | Son | — | Iowa |
| 55 | Donald, Lee Robertson | 2 | Son | — | Iowa |
| 56 | Robert, A. Browning | 25 | Head | Hired Man | Iowa |
| 57 | Lucille, B. Browning | 64 | Mother | — | Iowa |
| 58 | Dora, E. Browning | 23 | Sister | House Work | Iowa |
| 59 | Annie, K. Fryatson | 68 | Head | — | Sweden |
| 60 | Wilford, D. Fryatson | 37 | Son | Miner | Iowa |
| 61 | Theodore, J. Fryatson | 33 | Son | Section Labor | Iowa |
| 62 | Arthur, L. Fryatson | 27 | Son | Miner | Iowa |
| 63 | Mary Martingale | 75 | Head | — | Poland |
| 64 | Enoch Hecklow | 83 | Head | — | Sweden |
| 65 | John, E. Hecklow | 48 | Son | Housekeeper | Iowa |
| 66 | George, E. Hecklow | 37 | Son | Miner | Iowa |
| 67 | Frank, E. Cross | 45 | Head | Bridge Worker | Iowa |
| 68 | Marie, G. Cross | 28 | Wife | — | Iowa |
| 69 | Elizabeth, Ann Cross | 16 | Daughter | — | Iowa |
| 70 | Patti, Helen Cross | 10 | Daughter | — | Iowa |
| 71 | Marie, Louise Cross | 7 | Daughter | — | Iowa |
| 72 | Hope, Sharen Cross | 2 | Daughter | — | Iowa |
| 73 | Arthur, R. Greenfield | 50 | Head | Farmer | Iowa |
| 74 | Gladys, R. Greenfield | 46 | Wife | — | Iowa |
| 75 | Donald, L. Anderson | 45 | Head | Signal Man | Iowa |
| 78 | Lewis, E. Manhar | 46 | Head | Farmer | Iowa |
| 79 | Edith, L. Manhar | 43 | Wife | — | Iowa |
| 80 | Lois, L. Manhar | 13 | Daughter | — | Iowa |
Pedigree Summary
George
Gen 1 · 2 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)