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Fred Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this Fred Anderson across the 1910, 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed), with identified parents Johanna & Ole — first a head (b.~1909), then head of a 7-person household.
Age 31
b. ~1909
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Anderson |
| Given Name | Fred W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City |
| 1935 Residence (County) | Denver |
| Additional Details | |
| Occupation | Laborer |
| Industry | WPA |
| Class of Worker | GW |
| Hours Worked | 32 |
| Income (1939) | 330 |
| Highest Grade | G 5 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Laborer |
| Township / Ward | Denver City |
| Est. Birth Year | ~1909 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Fred | Age | Birth yr |
|---|---|---|---|---|
| Mildred Anderson | Daughter | — | 8 | ~1932 |
| Joan Anderson | Daughter | — | 1 | ~1939 |
| Shirley Anderson | Daughter | — | 4 | ~1936 |
| Betty Anderson | Daughter | — | 2 | ~1938 |
| Fred Anderson | Head | — | 31 | ~1909 |
| Lois Marchino | Other | — | 20 | ~1920 |
| Nellie Anderson | Spouse | — | 23 | ~1917 |
Census Appearances
1910
Denver, Colorado
Son, age 6
Denver, Colorado · implied b. ~1904 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Frederick |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1920
Denver, Colorado
Son, age 11
Denver, Colorado · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Frederick |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Denver, Colorado
Son, age 22
Denver, Colorado · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Fred |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Eng. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Head, age 31
Denver-County, Colorado · implied b. ~1909 — 7 household members
| Surname | Anderson |
| Given Name | Fred W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City |
| 1935 Residence (County) | Denver |
| Occupation | Laborer |
| Industry | WPA |
| Class of Worker | GW |
| Hours Worked | 32 |
| Income (1939) | 330 |
| Highest Grade | G 5 |
| 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 Fred Anderson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Johanna Anderson (~0.92 confidence) and father Ole Anderson (~0.92 confidence) and father Nels Anderson (~0.92 confidence) and mother Lona Anderson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Johanna Anderson
b. ~1862
Source mother
● Household
· direct · ~0.92
Father
Ole Anderson
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Nels Anderson
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Lona Anderson
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Fred Anderson
Head · 1940 · age 31 · b. ~1909 · 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 — Denver-County, Colorado
Open full size
1940 US Federal Census — Denver-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00493-00134)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ivan R Margeson | 13 | Son | — | Texas |
| 42 | Annabelle Margeson | 11 | Daughter | — | Texas |
| 43 | Carl L Margeson | 2 | Son | — | Nebraska |
| 44 | Fred W Anderson THIS PERSON | 31 | Head | Laborer | Colorado |
| 45 | Nellie F Anderson | 23 | Wife | — | Iowa |
| 46 | Mildred P Anderson | 8 | Daughter | — | Nebraska |
| 47 | Shirley M Anderson | 4 | Daughter | — | Colorado |
| 48 | Betty J Anderson | 2 | Daughter | — | Colorado |
| 49 | Joan H Anderson | 1 | Daughter | — | Colorado |
| 50 | Lois L Marchino | 20 | Sister | — | Iowa |
| 51 | Victor M Teyerhern | 28 | Head | Baker | Nebraska |
| 52 | Mildred Teyerhern | 26 | Wife | — | Missouri |
| 53 | Herbert Teyerhern | 5 | Son | — | Colorado |
| 54 | Eugene Teyerhern | 4 | Son | — | Colorado |
| 55 | Arlene Teyerhern | 3 | Daughter | — | Colorado |
| 56 | Albert P Riddel | 27 | Head | Laborer | Colorado |
| 57 | Nana E Riddel | 22 | Wife | — | Missouri |
| 58 | Alberta E Riddel | 2 | Daughter | — | Oregon |
| 59 | Nestor E Mcwhirk | 37 | Head | — | Colorado |
| 60 | Nancy L Mcwhirk | 18 | Daughter | — | Colorado |
| 61 | David F Mcwhirk | 13 | Son | — | Colorado |
| 62 | — | None | — | — | — |
| 63 | George F Debaca | 31 | Head | Manager | New Mexico |
| 64 | Lillian Debaca | 29 | Wife | — | Colorado |
| 65 | Adolph A Debaca | 10 | Son | — | Colorado |
| 66 | Billy L Debaca | 8 | Son | — | Colorado |
| 67 | Billy R Debaca | 6 | Son | — | Colorado |
| 68 | George Jr Debaca | 1 | Son | — | Colorado |
| 69 | Frank Benabidez | 31 | Head | Laborer | New Mexico |
| 70 | Isabella Benabidez | 26 | Wife | — | New Mexico |
| 71 | Idella Benabidez | 7 | Daughter | — | New Mexico |
| 72 | Alfonso Baca | 25 | Head | Laborer | Colorado |
| 73 | Lucinda H Baca | 19 | Wife | — | Colorado |
| 74 | Alfonso Jr Baca | 2 | Son | — | Colorado |
| 75 | Eleanor M Baca | 1 | Daughter | — | Colorado |
| 76 | Henry Harcourt | 69 | Head | — | Russia |
| 77 | Elizabeth Harcourt | 67 | Wife | — | Russia |
| 78 | Minnie Harcourt | 23 | Daughter | — | Colorado |
| 79 | William F Harcourt | 18 | Son | Cement Worker | Colorado |
| 80 | Lloyd R Burney | 26 | Head | Auto Mechanic | Colorado |
Pedigree Summary
Fred
Gen 1 · 4 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)