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John Montgomery — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this John Montgomery across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Frank & Montgomery — first a son (b.~1909), then head of a 5-person household.
Age 31
b. ~1909
Male
Son
Born: Illinois
Separated
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Montgomery |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 31 |
| Marital Status | Separated |
| Birthplace | Illinois |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Porter |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | No H-2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Porter |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1909 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Pauline Payne | Daughter | — | 24 | ~1916 |
| Frank Montgomery | Head | — | 57 | ~1883 |
| John Montgomery | Son | — | 31 | ~1909 |
| Donal Payne | Son | — | 6 | ~1934 |
| Nannie Montgomery | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Marion, Indiana
Son, age 11
Marion, Indiana · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Montgomery |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Marion, Indiana
Son, age 20
Marion, Indiana · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Montgomery |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Porter |
| Industry | Hotel |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Marion-County, Indiana
Son, age 31
Marion-County, Indiana · implied b. ~1909 — 5 household members
| Surname | Montgomery |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 31 |
| Marital Status | Separated |
| Birthplace | Illinois |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Occupation | Porter |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | No H-2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 John Montgomery across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Montgomery (~0.92 confidence) and father Montgomery 806 (~0.92 confidence) and mother Mamie Montgomery (~0.92 confidence) and mother Nannie Montgomery (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Montgomery
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Montgomery 806
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Mamie Montgomery
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Nannie Montgomery
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Montgomery
Son · 1940 · age 31 · b. ~1909 · Indiana
★ You are viewing this record
Sibling
Donal Payne
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pauline Payne
Sibling · 1940 · age 24
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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-01125-00103)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Kinslow | 52 | Wife | 0 | Kentucky |
| 42 | Ollie Whitaker | 44 | Lodger | 0 | Kentucky |
| 43 | Lorenzo Hockett | 60 | Head | Laborer | Tennessee |
| 44 | Dorothy Hockett | 26 | Wife | 0 | Indiana |
| 45 | Gertrude Hockett | 3 | Daughter | — | Indiana |
| 46 | Frank Hall | 23 | Head | Truck Driver | Indiana |
| 47 | Florence Hall | 19 | Wife | 0 | Indiana |
| 48 | Mary Hall | 3 | Daughter | — | Indiana |
| 49 | Barbara Hall | 2 | Daughter | — | Indiana |
| 50 | Edward Erby | 60 | Lodger | Laborer | South Carolina |
| 51 | Mary Erby | 49 | Lodger | Housekeeper | Tennessee |
| 52 | Juanita Erby | 23 | Lodger Daughter | Maid | West Virginia |
| 53 | Mildred Ray | 39 | Head | Laundress | Kentucky |
| 54 | Herbert Johnson | 40 | Lodger | Laborer | Louisiana |
| 55 | Mary Miles | 50 | Head | Laundress | Kentucky |
| 56 | Wessley Smith | 48 | Brother | 0 | Kentucky |
| 57 | Tom Maxey | 57 | Head | Laborer | Kentucky |
| 58 | Phoebe Maxey | 41 | Wife | 0 | Kentucky |
| 59 | John Shelbourne | 25 | Head | Porter | Arizona |
| 60 | Della Shelbourne | 21 | Wife | 0 | Kentucky |
| 61 | Delmar Shelbourne | 2 | Son | — | Indiana |
| 62 | James Thurman | 40 | Head | Laborer | Kentucky |
| 63 | Louise Thurman | 29 | Wife | 0 | Indiana |
| 64 | Mary Thurman | 9 | Daughter | — | Pennsylvania |
| 65 | Julie Highbaugh | 41 | Head | Maid | Kansas |
| 66 | Massie Gibson | 39 | Head | Mangle Operator | Georgia |
| 67 | Willie Gibson | 18 | Son | New Worker | Georgia |
| 71 | Joseph Sutton | 28 | Head | Laborer | Kentucky |
| 72 | Willa Sutton | 27 | Wife | 0 | Indiana |
| 73 | Lavonna Sutton | 11 | Daughter | — | Indiana |
| 74 | Joan Sutton | 5 | Daughter | — | Indiana |
| 75 | Barbara J. Sutton | 2 | Daughter | — | Indiana |
| 76 | Frank Montgomery | 57 | Head | Garage Operator | Kentucky |
| 77 | Nannie Montgomery | 52 | Wife | 0 | Kentucky |
| 78 | John Montgomery THIS PERSON | 31 | Son | Porter | Illinois |
| 79 | Pauline Payne | 24 | Daughter | Cook | Indiana |
| 80 | Donal Payne | 6 | Son | — | Indiana |
Pedigree Summary
John + 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)