RA
Robert Alexander — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Miguel-County, Colorado
Our Model Tree links this Robert Alexander across the 1920, 1930 and 1940 US Censuses in San-Miguel-County, Colorado (XGBoost, ~Confirmed) — first a head (b.~1896), then head of a 9-person household.
Age 44
b. ~1896
Male
Head
Born: Virginia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Miguel-County, Colorado |
| Surname | Alexander |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Township 45 Precinct 10 |
| 1935 Residence (County) | San Miguel |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 58 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Occupation | Farmer |
| Township / Ward | Township 45 Precinct 10 |
| Est. Birth Year | ~1896 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Mary Alexander | Daughter | — | 10 | ~1930 |
| Irene Alexander | Daughter | — | 16 | ~1924 |
| Ellen Alexander | Daughter | — | 14 | ~1926 |
| Betsy Alexander | Daughter | — | 6 | ~1934 |
| Robert Alexander | Head | — | 44 | ~1896 |
| Keith Alexander | Son | — | 12 | ~1928 |
| Robert Alexander | Son | — | 18 | ~1922 |
| Guy Alexander | Son | — | 22 | ~1918 |
| Ollie Alexander | Spouse | — | 45 | ~1895 |
Census Appearances
1920
San Miguel, …
Head, age 25
San Miguel, Colorado · implied b. ~1895 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Robert J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Farmer |
| Industry | Dairy farm |
| Class of Worker | Emp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1930
San Miguel, …
Head, age 34
San Miguel, Colorado · implied b. ~1896 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Robert J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Virginia |
| Age at First Marriage | 21 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
San-Miguel-County, Colorado
Head, age 44
San-Miguel-County, Colorado · implied b. ~1896 — 9 household members
| Surname | Alexander |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Township 45 Precinct 10 |
| 1935 Residence (County) | San Miguel |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 58 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 Alexander across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Alexander
Head · 1940 · age 44 · b. ~1896 · Colorado
★ 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 — San-Miguel-County, Colorado
Open full size
1940 US Federal Census — San-Miguel-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00479-00745)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Pete Olguin | 43 | Head | Sheep Herder | New Mexico |
| 2 | Jessie M. Rogers | 50 | Head | — | Mississippi |
| 3 | Jack Rogers | 21 | Son | Farmer | Colorado |
| 4 | Margie Rogers | 19 | Daughter | — | Colorado |
| 5 | Dorothy Rogers | 15 | Daughter | — | Colorado |
| 6 | Barbara Jean Rogers | 11 | Daughter | — | Colorado |
| 7 | John E. Ross | 43 | Head | Farmer | Colorado |
| 8 | Gertrude Ross | 29 | Wife | — | Colorado |
| 9 | Gordon Palmer | 29 | Head | Farmer | Colorado |
| 10 | Myrtle Palmer | 31 | Wife | — | Colorado |
| 11 | Sharon Palmer | 2 | Daughter | — | Colorado |
| 12 | James Morgan | 74 | Head | — | Indiana |
| 13 | Mellie Morgan | 67 | Wife | — | Missouri |
| 14 | Louie Jensen | 60 | Head | Farmer | Denmark |
| 15 | Alice Jensen | 44 | Wife | — | Colorado |
| 16 | Charles Jensen | 10 | Son | — | Colorado |
| 17 | Edward Jensen | 9 | Son | — | Colorado |
| 18 | Ethel Jensen | 4 | Daughter | — | Colorado |
| 19 | Robert Alexander THIS PERSON | 44 | Head | Farmer | Virginia |
| 20 | Ollie Alexander | 45 | Wife | — | Virginia |
| 21 | Guy Alexander | 22 | Son | Farmer | Colorado |
| 22 | Robert Alexander | 18 | Son | Farmer | Colorado |
| 23 | Irene Alexander | 16 | Daughter | — | Colorado |
| 24 | Ellen Alexander | 14 | Daughter | — | Colorado |
| 25 | Keith Alexander | 12 | Son | — | Colorado |
| 26 | Mary Alexander | 10 | Daughter | — | Colorado |
| 27 | Betsy Alexander | 6 | Daughter | — | Colorado |
| 28 | Riley Sullivan | 47 | Head | Farmer | Arkansas |
| 29 | Ella Sullivan | 37 | Wife | Registered Nurse | Missouri |
| 30 | Douglas Sullivan | 23 | Son | Farmer | Oklahoma |
| 31 | Billy Sullivan | 16 | Son | — | Oklahoma |
| 32 | George T. Hunnicutt | 29 | Head | Truck Driver | Oklahoma |
| 33 | Velma Hunnicutt | 25 | Wife | — | Oklahoma |
| 34 | (Extra Line) Hunnicutt | None | — | — | — |
| 35 | Georgia Juanita Hunnicutt | 5 | Daughter | — | Texas |
| 36 | Joyce Ann Hunnicutt | 3 | Daughter | — | Texas |
| 37 | Danny Thomas Hunnicutt | 1 | Son | — | Texas |
| 38 | Zela Van Dixon | 60 | Head | Farmer | Virginia |
| 39 | Edith Dixon | 30 | Wife | — | Virginia |
| 40 | (Extra Line) Dixon | None | — | — | — |
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)