DA
David Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cascade-County, Montana
Our Model Tree links this David Anderson across the 1910, 1920, 1930 and 1940 US Censuses in Cascade-County, Montana (XGBoost, ~Confirmed), with identified parents Lizzie & Jessie — first a head (b.~1906), then head of a 6-person household.
Age 34
b. ~1906
Male
Head
Born: Montana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cascade-County, Montana |
| Surname | Anderson |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Teton |
| 1935 Residence (County) | Teton |
| Additional Details | |
| Occupation | Surveyor |
| Industry | State Highway Comm. |
| Class of Worker | GW |
| Hours Worked | 4 |
| Income (1939) | 960 |
| Highest Grade | Hs 3 |
| 1935 Residence | Montana |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Occupation | Surveyor |
| Township / Ward | Great Falls |
| Est. Birth Year | ~1906 |
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 David | Age | Birth yr |
|---|---|---|---|---|
| David Anderson | Head | — | 34 | ~1906 |
| Katherine Saylor | Other | — | 18 | ~1922 |
| Billy Anderson | Son | — | 9 | ~1931 |
| James Anderson | Son | — | 12 | ~1928 |
| Robert Anderson | Son | — | 14 | ~1926 |
| Dorothy Anderson | Spouse | — | 33 | ~1907 |
Census Appearances
1910
Cascade, Montana
Son, age 4
Cascade, Montana · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1920
Cascade, Montana
Son, age 13
Cascade, Montana · implied b. ~1907 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1930
Cascade, Montana
Head, age 24
Cascade, Montana · implied b. ~1906 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Montana |
| Age at First Marriage | 18 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Car Repairer |
| Industry | Steam Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | No |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Cascade-County, Montana
Head, age 34
Cascade-County, Montana · implied b. ~1906 — 6 household members
| Surname | Anderson |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Teton |
| 1935 Residence (County) | Teton |
| Occupation | Surveyor |
| Industry | State Highway Comm. |
| Class of Worker | GW |
| Hours Worked | 4 |
| Income (1939) | 960 |
| Highest Grade | Hs 3 |
| 1935 Residence | Montana |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 David Anderson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Lizzie Anderson (~0.92 confidence) and mother Jessie Anderson (~0.92 confidence) and father John Anderson (~0.92 confidence) and father John Anderson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Lizzie Anderson
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Jessie Anderson
b. ~1875
Source mother
● Household
· direct · ~0.92
Father
John Anderson
b. ~1875
Source father
● Household
· direct · ~0.92
Father
John Anderson
b. ~1882
Source father
● Household
· direct · ~0.92
This person
Anchor record
David Anderson
Head · 1940 · age 34 · b. ~1906 · Montana
★ 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 — Cascade-County, Montana
Open full size
1940 US Federal Census — Cascade-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02214-00829)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elizabeth Campbell | 70 | Head | — | Canada |
| 42 | Robert Campbell | 41 | Son | Time-Keeper | Montana |
| 43 | Edna Campbell | 38 | Daughter | Bookkeeper | Montana |
| 44 | Ludwig Thulke | 52 | Head | Cattle-Superviser | Poland |
| 45 | Nellie Thulke | 51 | Wife | — | Poland |
| 46 | Helen Thulke | 21 | Daughter | Clerical | Montana |
| 47 | Gottfried C. Pihlaja | 47 | Head | Bookkeeper | Montana |
| 48 | Agnes M. Pihlaja | 44 | Wife | — | Montana |
| 49 | Clarence B. Rule | 45 | Brother-in-law | Malleable Iron | Michigan |
| 50 | Emma C. D. Rule | 45 | Sister | — | Montana |
| 51 | Dorothy Rule | 19 | Niece | Dancing Instr. | Montana |
| 52 | J. Jerome Krier | 26 | Nephew-in-law | — | Minnesota |
| 53 | Agnes E. Krier | 25 | Niece | — | Montana |
| 54 | Otto L. Pajula | 49 | Brother | Laborer | Minnesota |
| 55 | Katherine Pajula | 52 | Sister-in-law | Hostess | Russia |
| 56 | John Anderson | 56 | Head | Locomotive Engineer | Scotland |
| 57 | Lizzie Anderson | 56 | Wife | — | Scotland |
| 58 | Otto Brench | 76 | Head | Retired | Wisconsin |
| 59 | Anna Brench | 75 | Wife | — | Germany |
| 60 | Bert Birtwistle | 53 | Head | Stationary Engineer | England |
| 61 | Emma Birtwistle | 52 | Wife | — | England |
| 62 | Edith Birtwistle | 32 | Daughter | Clerk | England |
| 63 | H. Parr | 39 | Head | Steeplejack | England |
| 64 | Ruth Parr | 38 | Wife | — | England |
| 65 | Thomas Jr. Parr | 16 | Son | — | England |
| 66 | Constance Parr | 11 | Daughter | — | Montana |
| 67 | David Anderson THIS PERSON | 34 | Head | Surveyor | Montana |
| 68 | Dorothy Anderson | 33 | Wife | — | Montana |
| 69 | Robert Anderson | 14 | Son | — | Montana |
| 70 | James Anderson | 12 | Son | — | Montana |
| 71 | Billy Anderson | 9 | Son | — | Montana |
| 72 | Katherine Saylor | 18 | Boarder | House-Work | North Dakota |
| 73 | Robert B. Pyle | 33 | Head | Manager | Montana |
| 74 | Madeline Pyle | 29 | Wife | — | Montana |
| 75 | Robert Jr. Pyle | 7 | Son | — | Montana |
| 76 | Edward Pyle | 5 | Son | — | Montana |
| 77 | Jerry Pyle | 3 | Son | — | Montana |
| 78 | Sheldon Mcnair | 31 | Head | Laborer | Montana |
| 79 | Marjorie Mcnair | 26 | Wife | — | Michigan |
| 80 | Joyce Mcnair | 5 | Daughter | — | Michigan |
Pedigree Summary
David
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)