DM
Donald Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this Donald Martin across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed), with identified parents William & Iona — first a son (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Male
Son
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver |
| 1935 Residence (County) | Denver |
| Additional Details | |
| Occupation | Secretary |
| Industry | Theater |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 750 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Secretary |
| Township / Ward | Denver |
| Est. Birth Year | ~1918 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Verna Martin | Spouse | — | 46 | ~1894 |
| Jack Martin | Son | — | 19 | ~1921 |
| William Martin | Head | — | 48 | ~1892 |
| Robert Martin | Son | — | 13 | ~1927 |
| Donald Martin | Son | — | 22 | ~1918 |
Census Appearances
1920
Denver, Colorado
Son, age 2
Denver, Colorado · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Colorado |
| Mother's Birthplace | Colorado |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Denver, Colorado
Son, age 12
Denver, Colorado · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Colorado |
| Mother's Birthplace | Colorado |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Son, age 22
Denver-County, Colorado · implied b. ~1918 — 5 household members
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver |
| 1935 Residence (County) | Denver |
| Occupation | Secretary |
| Industry | Theater |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 750 |
| Highest Grade | H-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 Donald Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Martin (~0.92 confidence) and mother Iona Martin (~0.92 confidence) and mother Verna Martin (~0.92 confidence) and mother Vina Martin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Martin
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Iona Martin
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Verna Martin
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Vina Martin
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Martin
Son · 1940 · age 22 · b. ~1918 · Colorado
★ You are viewing this record
Sibling
Jack Martin
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Martin
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
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
39 people indexed on this census page (nara:1940:m-t0627-00486-00726)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harry Petersen | 79 | Head | Retired | Denmark |
| 42 | Alma Petersen | 68 | Wife | — | Denmark |
| 43 | Harry Jr Petersen | 32 | Son | Car-Man | Colorado |
| 44 | Elsie Petersen | 29 | Daughter | Office Work | Colorado |
| 45 | Eva S Fyffe | 78 | Head | — | Indiana |
| 46 | Howard Subfad | 36 | Head | Manager | Colorado |
| 47 | Bernice Subfad | 38 | Wife | — | Kansas |
| 48 | John Subfad | 16 | Son | — | Colorado |
| 49 | Robert Subfad | 8 | Son | — | Colorado |
| 50 | Lois Subfad | 7 | Daughter | — | Colorado |
| 51 | William Subfad | 4 | Son | — | Colorado |
| 52 | James Sawyer | 30 | Head | Barber | Oklahoma |
| 53 | Stella Sawyer | 30 | Wife | Clerical | Colorado |
| 54 | Donald Sawyer | 6 | Son | — | Colorado |
| 55 | John Ensberg | 32 | Head | Equipt Opertr | Colorado |
| 56 | Amanda Ensberg | 35 | Wife | — | Colorado |
| 57 | Carl Ensberg | 1 | Son | — | New Mexico |
| 59 | Louis Carter | 47 | Head | Sales Man | Missouri |
| 60 | Pearl Carter | 46 | Wife | — | Kansas |
| 61 | Louis Jr Carter | 23 | Son | Jeweler | Kansas |
| 62 | Irving Goode | 26 | Head | Engineer | Colorado |
| 63 | Virginia Goode | 22 | Wife | — | Colorado |
| 64 | Janice Goode | 2 | Daughter | — | Colorado |
| 65 | Charles Seibert | 47 | Head | Pilot | Minnesota |
| 66 | Freda Seibert | 40 | Wife | — | Minnesota |
| 67 | Thomas Dempster | 44 | Head | Sewing | Illinois |
| 68 | Chloe Dempster | 42 | Wife | — | Minnesota |
| 69 | Maxine Dempster | 19 | Daughter | — | Colorado |
| 70 | William J Martin | 48 | Head | Machinist | Colorado |
| 71 | Verna Martin | 46 | Wife | — | Colorado |
| 72 | Donald Martin THIS PERSON | 22 | Son | Secretary | Colorado |
| 73 | Jack W Martin | 19 | Son | Office-Man | Colorado |
| 74 | Robert L Martin | 13 | Son | — | Colorado |
| 75 | James Kaisan | 32 | Head | Machinist | Kansas |
| 76 | Mary C Kaisan | 32 | Wife | — | Kansas |
| 77 | Philip Kaisan | 2 | Son | — | Colorado |
| 78 | Margaret Mullarkey | 58 | Mother-in-law | Stenographer | Colorado |
| 79 | William Haas | 51 | Head | Picture Framer | Colorado |
| 80 | Ethel Haas | 45 | Wife | — | Colorado |
Pedigree Summary
Donald + 2 siblings
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)