DM
Donald Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ouray-County, Colorado
Our Model Tree links this Donald Martin across the 1910, 1920, 1930 and 1940 US Censuses in Ouray-County, Colorado (XGBoost, ~Confirmed), with identified parents John & John — first a head (b.~1908), then head of a 3-person household.
Age 32
b. ~1908
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ouray-County, Colorado |
| Surname | Martin |
| Given Name | Donald E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Ouray |
| Additional Details | |
| Occupation | Blacksmith |
| Industry | Own shop |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Colorado |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Blacksmith |
| Township / Ward | Ridgway Town |
| Est. Birth Year | ~1908 |
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 Donald | Age | Birth yr |
|---|---|---|---|---|
| Donald Martin | Head | — | 32 | ~1908 |
| Donna Martin | Daughter | — | 1 | ~1939 |
| Florence Martin | Spouse | — | 30 | ~1910 |
Census Appearances
1910
Ouray, Colorado
Son, age 2
Ouray, Colorado · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Donald E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Eng English |
| Mother's Birthplace | Delaware |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1920
Ouray, Colorado
Son, age 12
Ouray, Colorado · implied b. ~1908 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Donald E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | England |
| Mother's Birthplace | Delaware |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Ouray, Colorado
Son, age 21
Ouray, Colorado · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Donald E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | England |
| Mother's Birthplace | Delaware |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Ouray-County, Colorado
Head, age 32
Ouray-County, Colorado · implied b. ~1908 — 3 household members
| Surname | Martin |
| Given Name | Donald E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Ouray |
| Occupation | Blacksmith |
| Industry | Own shop |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Colorado |
| 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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Martin (~0.92 confidence) and father John Martin (~0.92 confidence) and mother Mary Martin (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Martin
b. ~1855
Source father
● Household
· direct · ~0.92
Father
John Martin
b. ~1855
Source father
● Household
· direct · ~0.92
Mother
Mary Martin
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Martin
Head · 1940 · age 32 · b. ~1908 · 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 — Ouray-County, Colorado
Open full size
1940 US Federal Census — Ouray-County, Colorado
Page Contents
33 people indexed on this census page (nara:1940:m-t0627-00473-00791)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George Robert Duncan | 14 | Son | — | Colorado |
| 2 | Margaret Emma Duncan | 6 | Daughter | — | Colorado |
| 3 | Sylvia Irene Duncan | 5 | Granddaughter | — | Colorado |
| 5 | Henry David Hosford | 50 | Head | Bus Driver | Colorado |
| 6 | Sadie Louise Hosford | 42 | Wife | — | Colorado |
| 7 | Arthur Frank Hosford | 20 | Son | Truck Driver | Colorado |
| 8 | Charles David Hosford | 17 | Son | — | Colorado |
| 9 | James Casper | 47 | Head | Eng Fireman | Iowa |
| 10 | Mable Casper | 40 | Wife | — | Colorado |
| 11 | Ambrosin Therkelsen | 57 | Head | Superintendent | Denmark |
| 12 | Bessie Therkelsen | 58 | Wife | — | Nebraska |
| 15 | Elizabeth A. Phillips | 76 | Head | — | Indiana |
| 17 | John A. Gilchrist | 41 | Head | Instructor | Kentucky |
| 18 | Marjorie Gilchrist | 38 | Wife | — | Kansas |
| 19 | Louise Madeline Read | 36 | Head | Teacher | New Hampshire |
| 20 | Gertrude Lucille Milly | 31 | Sister | Teacher | Colorado |
| 22 | Earl V. Wagner | 35 | Head | Operator | California |
| 23 | Hazel A. Wagner | 31 | Wife | — | Colorado |
| 24 | Dale B. Wagner | 7 | Son | — | Colorado |
| 26 | Fina Moudy | 68 | Head | — | Kansas |
| 28 | Chas H. Beechi | 28 | Head | Farmer | Colorado |
| 29 | Adile Beechi | 27 | Wife | — | Colorado |
| 30 | Violet Fitzgerald | 8 | Stepdaughter | — | Kansas |
| 31 | Rosie Jane Fitzgerald | 7 | Stepdaughter | — | Colorado |
| 32 | Claude Charlie Fitzgerald | 5 | Step-son | — | Colorado |
| 33 | Dorothy Beechi | 0 | Daughter | — | Colorado |
| 34 | Donald E. Martin THIS PERSON | 32 | Head | Blacksmith | Colorado |
| 35 | Florence R. Martin | 30 | Wife | — | Colorado |
| 36 | Donna Mae Martin | 1 | Daughter | — | Colorado |
| 37 | Cecil J. Sowell | 45 | Head | Operator | Mississippi |
| 38 | Percy J. Huff | 49 | Head | Flycutter | Ohio |
| 39 | Gertrude Huff | 34 | Wife | — | Oklahoma |
| 40 | Betty Huff | 19 | Daughter | Librarian | Pennsylvania |
Pedigree Summary
Donald
Gen 1 · 3 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)