CM
Carl Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Custer-County, Montana
Our Model Tree links this Carl Martin across the 1930 and 1940 US Censuses in Custer-County, Montana (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 6-person household.
Age 17
b. ~1923
Male
Son
Born: North Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Custer-County, Montana |
| Surname | Martin |
| Given Name | Carl P |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Custer |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Montana |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Township / Ward | Miles City |
| Est. Birth Year | ~1923 |
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 Carl | Age | Birth yr |
|---|---|---|---|---|
| Francesca Martin | Spouse | — | 46 | ~1894 |
| Carl Martin | Son | — | 17 | ~1923 |
| Michael Martin | Son | — | 22 | ~1918 |
| Anton Martin | Head | — | 55 | ~1885 |
| Anton Martin | Son | — | 19 | ~1921 |
| Henry Martin | Son | — | 14 | ~1926 |
Census Appearances
1930
Custer, Montana
Son, age 7
Custer, Montana · implied b. ~1923 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Carl F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Austria-Hungary |
| Mother's Birthplace | Austria-Hungary |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Custer-County, Montana
Son, age 17
Custer-County, Montana · implied b. ~1923 — 6 household members
| Surname | Martin |
| Given Name | Carl P |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Custer |
| Class of Worker | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Montana |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
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 Carl Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Carl Martin
Son · 1940 · age 17 · b. ~1923 · Montana
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Sibling
Henry Martin
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Martin
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anton Martin
Sibling · 1940 · age 19
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 — Custer-County, Montana
Open full size
1940 US Federal Census — Custer-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02216-00549)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Andrew J Kensen | 75 | Head | — | Denmark |
| 2 | Ettie E Kensen | 72 | Wife | — | Ohio |
| 3 | Walter J Krantz | 48 | Son-in-law | — | Minnesota |
| 4 | Blanch Krantz | 50 | Daughter | — | Illinois |
| 5 | Anton Martin | 55 | Head | Round House Foreman | Romania |
| 6 | Francesca S Martin | 46 | Wife | — | Romania |
| 7 | Michael H Martin | 22 | Son | Section Hand | North Dakota |
| 8 | Anton J Martin | 19 | Son | — | North Dakota |
| 9 | Carl P Martin THIS PERSON | 17 | Son | — | North Dakota |
| 10 | Henry C Martin | 14 | Son | — | Montana |
| 11 | Herman H Inman | 61 | Head | Laborer | Germany |
| 12 | Barbara Inman | 50 | Wife | — | Hungary |
| 13 | John H Hansen | 68 | Head | — | Denmark |
| 14 | Hans M Hansen | 61 | Wife | Seamstress | Norway |
| 15 | Glen E Hansen | 25 | Head | Baker | North Dakota |
| 16 | Ione I Hansen | 23 | Wife | — | North Dakota |
| 17 | Darlene Hansen | 3 | Daughter | — | Montana |
| 18 | Fredrick S Wolfe | 69 | Head | — | New York |
| 19 | Harriet E Wolfe | 75 | Wife | — | Wisconsin |
| 20 | Ethel I Smith | 52 | Head | — | Wisconsin |
| 21 | Le Ruth Smith | 15 | Daughter | — | Wisconsin |
| 22 | William R Smith | 13 | Son | — | Montana |
| 23 | Willard E Hawley | 68 | Head | — | Michigan |
| 24 | Josephine Hawley | 54 | Wife | — | Oregon |
| 25 | John Leitholt | 50 | Head | — | Russia |
| 26 | Elizabeth Leitholt | 44 | Wife | — | Russia |
| 27 | Carl H Leitholt | 20 | Son | Common Laborer | North Dakota |
| 28 | Elsie A Leitholt | 17 | Daughter | Waiter | North Dakota |
| 29 | Leonard J Williams | 44 | Head | Laborer | Wisconsin |
| 30 | Elsie P Williams | 31 | Wife | — | Nebraska |
| 31 | Walter T Williams | 15 | Son | Truck Driver | Montana |
| 32 | Annie I Williams | 15 | Daughter | Orderly | Montana |
| 33 | Leonard W Williams | 14 | Son | — | Montana |
| 34 | Darlene S Williams | 10 | Daughter | — | Montana |
| 35 | Berta J Williams | 7 | Daughter | — | Montana |
| 36 | Patrick Cunningham | 52 | Boarder | Truck Driver | Ireland |
| 37 | Peter Carter | 52 | Head | Miner | Minnesota |
| 38 | Lulubelle H Carter | 42 | Wife | Janitor | Minnesota |
| 39 | James N Carter | 21 | Son | — | Minnesota |
| 40 | Donald Carter | 18 | Son | New Worker | South Dakota |
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)