RM
Ruth Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this Ruth Martin across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed), with identified parents Harry & Thomas — first a daughter (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Female
Daughter
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Martin |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver |
| 1935 Residence (County) | Denver |
| Additional Details | |
| Occupation | Cost Accountant |
| Industry | Candy Mfg. |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 900 |
| Highest Grade | C 4 |
| 1935 Residence | Same Place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Cost Accountant |
| Township / Ward | Denver |
| Est. Birth Year | ~1915 |
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 Ruth | Age | Birth yr |
|---|---|---|---|---|
| Ruth Martin | Daughter | — | 25 | ~1915 |
| Ruth Martin | Head | — | 47 | ~1893 |
| Frieda Couperthwaite | Other | — | 28 | ~1912 |
Census Appearances
1920
Denver, Colorado
Daughter, age 3
Denver, Colorado · implied b. ~1917 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Ruth C |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | New York |
| Mother's Birthplace | Colorado |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Denver, Colorado
Daughter, age 14
Denver, Colorado · implied b. ~1916 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Ruth E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | New York |
| Mother's Birthplace | Colorado |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Daughter, age 25
Denver-County, Colorado · implied b. ~1915 — 3 household members
| Surname | Martin |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver |
| 1935 Residence (County) | Denver |
| Occupation | Cost Accountant |
| Industry | Candy Mfg. |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 900 |
| Highest Grade | C 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 Ruth Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Martin (~0.92 confidence) and father Thomas Martin (~0.92 confidence) and mother Angela Martin (~0.92 confidence) and mother Ruth Martin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Martin
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Thomas Martin
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Angela Martin
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Ruth Martin
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruth Martin
Daughter · 1940 · age 25 · b. ~1915 · 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-t0627-00490-00583)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frances Connelley | 27 | Wife | Beauty Operator | Kansas |
| 2 | Ruth Martin | 47 | Head | Record Clerk | Kansas |
| 3 | Ruth Martin THIS PERSON | 25 | Daughter | Cost Accountant | Colorado |
| 4 | Frieda Couperthwaite | 28 | Lodger | Stenographer | Colorado |
| 5 | Edith A. Kennedy | 74 | Head | — | Massachusetts |
| 6 | Alexander B. Kennedy | 52 | Son | City Salesman | Colorado |
| 7 | Margaret B. Smith | 68 | Head | — | Virginia |
| 8 | Emily B. Fischer | 31 | Head | Teacher | Colorado |
| 9 | Flora Page | 46 | Lodger | Teacher | Missouri |
| 10 | Lucy B. Foster | 69 | Head | — | Illinois |
| 11 | H. C. Jr. Mcdean | 26 | Head | Accountant | Colorado |
| 12 | Catherine Mcdean | 23 | Wife | — | Colorado |
| 13 | James C. Lewis | 30 | Head | Teacher | Colorado |
| 14 | Virginia Lewis | 25 | Wife | Teacher | Colorado |
| 15 | Joseph Geo. Hayna | 33 | Head | Assistant Store House Manager | Illinois |
| 16 | Gertrude Hayna | 32 | Wife | — | Illinois |
| 17 | Harry Thornton | 31 | Head | Loan Clerk | Colorado |
| 18 | Faye Osborn Thornton | 31 | Wife | Student | Colorado |
| 19 | Samuel L. Smith | 55 | Head | City Salesman | England |
| 20 | Sadie A. Smith | 53 | Wife | — | Illinois |
| 21 | Alexander Fisk | 57 | Head | Traveling Salesman | Kansas |
| 22 | Evelyn F. Fisk | 57 | Wife | — | Massachusetts |
| 23 | Mabel Herr | 57 | Head | Supply Teacher | Indiana |
| 24 | Chauncey Herr | 22 | Son | Salesman | Colorado |
| 25 | Dorothy Herr | 23 | Daughter | General Office Work | Colorado |
| 26 | Jessie Donnelly | 42 | Head | Assistant Stock Clerk | Minnesota |
| 27 | Rosemary Donnelly | 40 | Lodger | Telegrapher | Mississippi |
| 28 | Jo Harrigan Barrett | 31 | Head | — | Alabama |
| 29 | Joe Cohen | 57 | Head | Cattle Buyer | Russia |
| 30 | Sarah Cohen | 57 | Wife | — | Russia |
| 31 | Sam Cohen | 25 | Son | Manufacturer | Colorado |
| 32 | Katherine Blair | 61 | Head | Secretary | Illinois |
| 33 | Anna B. Carter | 52 | Head | — | Michigan |
| 34 | James Carter | 23 | Son | Cashier | Indiana |
| 35 | Pauline Carter | 25 | Daughter | Buyer | Indiana |
| 36 | John B. Horstman | 60 | Head | — | Indiana |
| 37 | Bertha B. Horstman | 55 | Wife | — | Kansas |
| 38 | E. C. Jr. Peabody | 25 | Head | Draftsman | Colorado |
| 39 | Lenora M. Peabody | 30 | Wife | — | Nebraska |
| 40 | Francis Lyon | 42 | Head | Stenographer | New York |
Pedigree Summary
Ruth
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)