LM
Louis Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ramsey-County, North Dakota
Our Model Tree links this Louis Martin across the 1930 and 1940 US Censuses in Ramsey-County, North Dakota (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Male
Son
Born: North Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ramsey-County, North Dakota |
| Surname | Martin |
| Given Name | Louis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Devils Lake City |
| 1935 Residence (County) | Ramsey |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Township / Ward | Devils Lake City |
| Est. Birth Year | ~1929 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Louis | Age | Birth yr |
|---|---|---|---|---|
| Irene Martin | Daughter | — | 15 | ~1925 |
| Joseph Martin | Head | — | 54 | ~1886 |
| Mary Martin | Daughter | — | 4 | ~1936 |
| Dorothy Moran | Other | — | 30 | ~1910 |
| Virginia Martin | Spouse | — | 41 | ~1899 |
| Thelpile Martin | Son | — | 7 | ~1933 |
| Louis Martin | Son | — | 11 | ~1929 |
| Eugenia Martin | Daughter | — | 9 | ~1931 |
| Walter Martin | Son | — | 13 | ~1927 |
| Joseph Martin | Son | — | 17 | ~1923 |
Census Appearances
1930
Ramsey, North …
Son, age 1
Ramsey, North Dakota · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Louis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | American Indian |
| Age | 1 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Mixed Blood |
| Mother's Birthplace | Chippewa |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Ramsey-County, North …
Son, age 11
Ramsey-County, North Dakota · implied b. ~1929 — 10 household members
| Surname | Martin |
| Given Name | Louis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Devils Lake City |
| 1935 Residence (County) | Ramsey |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| 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 Louis Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Louis Martin
Son · 1940 · age 11 · b. ~1929 · North Dakota
★ You are viewing this record
Sibling
Irene Martin
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Martin
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelpile Martin
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Martin
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugenia Martin
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Martin
Sibling · 1940 · age 4
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 — Ramsey-County, North Dakota
Open full size
1940 US Federal Census — Ramsey-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03010-00271)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Azue | 31 | Wife | — | North Dakota |
| 2 | Virginia Allard | 21 | Cousin | — | North Dakota |
| 3 | Joseph M. Martin | 54 | Head | — | North Dakota |
| 4 | Virginia Martin | 41 | Wife | Carpenter | North Dakota |
| 5 | Joseph A. Martin | 17 | Son | — | North Dakota |
| 6 | Irene A. Martin | 15 | Daughter | — | North Dakota |
| 7 | Walter B. Martin | 13 | Son | — | North Dakota |
| 8 | Louis Martin THIS PERSON | 11 | Son | — | North Dakota |
| 9 | Eugenia R. Martin | 9 | Daughter | — | North Dakota |
| 10 | Thelpile D. Martin | 7 | Son | — | North Dakota |
| 11 | Mary F. Martin | 4 | Daughter | — | North Dakota |
| 12 | Dorothy Moran | 30 | Sister-in-law | House Work | North Dakota |
| 13 | Henry Anderson | 36 | Head | Laborer | North Dakota |
| 14 | Theresa Anderson | 41 | Wife | — | North Dakota |
| 15 | Adeline A. Anderson | 13 | Daughter | — | North Dakota |
| 16 | Irene A. Anderson | 9 | Daughter | — | North Dakota |
| 17 | John H. Anderson | 11 | Son | — | North Dakota |
| 18 | Theodore Heitman | 60 | Head | Watchman | Russia |
| 19 | Caroline Heitman | 63 | Wife | — | Russia |
| 20 | Eva Heitman | 17 | Daughter | House Work | North Dakota |
| 21 | George Standinger | 37 | Head | Laborer | North Dakota |
| 22 | Anna Standinger | 29 | Wife | — | North Dakota |
| 23 | Jacklyn Standinger | 11 | Daughter | — | North Dakota |
| 24 | Marilyn Standinger | 7 | Son | — | North Dakota |
| 25 | Meldon Standinger | 3 | Son | — | North Dakota |
| 26 | Frank Fry | 38 | Head | Pipe Covering | North Dakota |
| 27 | Margurett Fry | 36 | Wife | — | North Dakota |
| 28 | Edward D. Fry | 14 | Son | — | North Dakota |
| 29 | Maryanna Gefroh | 73 | Head | — | Russia |
| 30 | John P. Gefroh | 40 | Son | — | Russia |
| 31 | Sebastian Singohr | 46 | Head | Laborer | Russia |
| 32 | Magdalene Singohr | 39 | Wife | — | North Dakota |
| 33 | John S. Singohr | 18 | Son | — | North Dakota |
| 34 | Frances Singohr | 15 | Daughter | — | North Dakota |
| 35 | Eva Mae Singohr | 2 | Daughter | — | North Dakota |
| 36 | Stanley La Fromboise | 21 | Head | Laborer | North Dakota |
| 37 | Mary La Fromboise | 20 | Wife | — | North Dakota |
| 38 | Frank P. La Forte | 32 | Head | Laborer | North Dakota |
| 39 | Jennie La Forte | 30 | Wife | — | North Dakota |
| 40 | Stella La Forte | 9 | Daughter | — | North 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)