JM
James Montgomery — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wabash-County, Indiana
Our Model Tree links this James Montgomery across the 1930 and 1940 US Censuses in Wabash-County, Indiana (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 11-person household.
Age 18
b. ~1922
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wabash-County, Indiana |
| Surname | Montgomery |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Wabash |
| 1935 Residence (County) | Wabash |
| Additional Details | |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Wabash |
| Est. Birth Year | ~1922 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Lois Sundheimer | Daughter | — | 11 | ~1929 |
| Herbert Sundheimer | Head | — | 41 | ~1899 |
| Francis Burke | Other | — | 25 | ~1915 |
| Herbert Sundheimer | Son | — | 15 | ~1925 |
| James Montgomery | Son | — | 18 | ~1922 |
| Wilbur Sundheimer | Son | — | 17 | ~1923 |
| Ronald Filinn | Son | — | 3 | ~1937 |
| Carl Sundheimer | Son | — | 13 | ~1927 |
| Charles Filinn | Son | — | 7 | ~1933 |
| Donald Filinn | Son | — | 3 | ~1937 |
| Edna Sundheimer | Spouse | — | 36 | ~1904 |
Census Appearances
1930
Wabash, Indiana
Son, age 8
Wabash, Indiana · implied b. ~1922 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Montgomery |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Ohio |
| Mother's Birthplace | South Dakota |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Wabash-County, Indiana
Son, age 18
Wabash-County, Indiana · implied b. ~1922 — 11 household members
| Surname | Montgomery |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Wabash |
| 1935 Residence (County) | Wabash |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 James Montgomery across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Montgomery
Son · 1940 · age 18 · b. ~1922 · Indiana
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Sibling
Carl Sundheimer
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Sundheimer
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Filinn
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ronald Filinn
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilbur Sundheimer
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Sundheimer
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Filinn
Sibling · 1940 · age 7
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 — Wabash-County, Indiana
Open full size
1940 US Federal Census — Wabash-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01106-00461)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mildred Stovall | 23 | Lodger | Punch Press Operator | Indiana |
| 2 | Malcolm Fryert | 12 | Son | — | Indiana |
| 3 | Philip Hipskind | 28 | Head | Millwright | Indiana |
| 4 | Vivian Hipskind | 27 | Wife | — | Illinois |
| 5 | Roger Hipskind | 8 | Son | — | Illinois |
| 6 | Floyd Frantz | 50 | Head | Laborer | Indiana |
| 7 | Golda Frantz | 35 | Wife | — | Indiana |
| 8 | Carol Frantz | 17 | Son | — | Indiana |
| 9 | Ardath Frantz | 14 | Daughter | — | Indiana |
| 10 | Joanne Frantz | 10 | Daughter | — | Indiana |
| 11 | Lois Purdy | 21 | Sister-in-law | Stenographer | Montana |
| 12 | Phyllis Purdy | 20 | Sister-in-law | Stenographer | Indiana |
| 13 | Forest Vice | 45 | Head | Pattern Maker | Missouri |
| 14 | Ruth Vice | 47 | Wife | — | Indiana |
| 15 | Robert Carney | 11 | Nephew | — | N. Mexico |
| 16 | Harold Brocken | 35 | Head | Draftsman | Indiana |
| 17 | Kathryn Brocken | 31 | Wife | — | Ohio |
| 18 | John Brocken | 7 | Son | — | Indiana |
| 19 | Thomas Brocken | 6 | Son | — | Indiana |
| 20 | Richard Brocken | 2 | Son | — | Indiana |
| 21 | Herbert Sundheimer | 41 | Head | Foreman | Indiana |
| 22 | Edna Sundheimer | 36 | Wife | Press Operator | Indiana |
| 23 | Wilbur Sundheimer | 17 | Son | — | Indiana |
| 24 | Herbert Sundheimer | 15 | Son | — | Indiana |
| 25 | Carl Sundheimer | 13 | Son | — | Indiana |
| 26 | Lois Sundheimer | 11 | Daughter | — | Indiana |
| 27 | James Montgomery THIS PERSON | 18 | Son | — | Indiana |
| 28 | Francis Burke | 25 | Patient | — | Indiana |
| 29 | Charles Filinn | 7 | Son | — | Indiana |
| 30 | Ronald Filinn | 3 | Son | — | Indiana |
| 31 | Donald Filinn | 3 | Son | — | Indiana |
| 32 | John Murphy | 51 | Head | Truck Driver | Indiana |
| 33 | Catharine Murphy | 47 | Wife | — | Indiana |
| 34 | Bondeline Murphy | 18 | Daughter | — | Indiana |
| 35 | Charles Murphy | 16 | Son | — | Indiana |
| 36 | Lee Arnold Murphy | 12 | Son | — | Indiana |
| 37 | Ethel Murphy | 11 | Daughter | — | Indiana |
| 38 | Mary Murphy | 9 | Daughter | — | Indiana |
| 39 | John Jr. Murphy | 8 | Son | — | Indiana |
| 40 | Delores Murphy | 4 | Daughter | — | Indiana |
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)