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John Montgomery — 1920 US Census Record
Model Tree available1920 United States Federal Census · Arapahoe, Colorado
Our Model Tree links this John Montgomery across the 1900, 1910 and 1920 US Censuses in Arapahoe, Colorado (XGBoost, ~Confirmed), with identified parents Geo & John — first a son (b.~1900), then head of a 5-person household.
Age 20
b. ~1900
Male
Son
Born: Colorado
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Arapahoe, Colorado |
| Surname | Montgomery |
| Given Name | John W Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kansas |
| Additional Details | |
| Occupation | Laborer |
| Industry | Water Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Laborer |
| Township / Ward | Precinct 4 |
| Est. Birth Year | ~1900 |
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 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Maud Montgomery | Daughter | — | 15 | ~1905 |
| Stella Montgomery | Daughter | — | 25 | ~1895 |
| John Montgomery | Head | — | 70 | ~1850 |
| John Montgomery | Son | — | 20 | ~1900 |
| Augusta Montgomery | Spouse | — | 60 | ~1860 |
Census Appearances
1900
Jefferson, Colorado
Son, age 1
Jefferson, Colorado · implied b. ~1899 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Montgomery |
| Given Name | John W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Colorado |
| Birth Month | Sep |
| Birth Year | 1899 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kansas |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1910
Jefferson, Colorado
Son, age 10
Jefferson, Colorado · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Montgomery |
| Given Name | John W. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kansas |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1920
Arapahoe, Colorado
Son, age 20
Arapahoe, Colorado · implied b. ~1900 — 5 household members
| Surname | Montgomery |
| Given Name | John W Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kansas |
| Occupation | Laborer |
| Industry | Water Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 John Montgomery across 3 US Census years (1900, 1910 and 1920) in 2 locations, using XGBoost record linkage. Identified parents: father Geo Montgomery (~0.92 confidence) and father John Montgomery (~0.92 confidence) and mother Augusta Montgomery (~0.92 confidence) and mother Augusta Montgomery (~0.92 confidence) and mother Augusta Montgomery (~0.92 confidence) and mother Lois Montgomery (~0.60 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.87
Father
Geo Montgomery
b. ~1842
Source father
● Household
· direct · ~0.92
Father
John Montgomery
b. ~1850
Source father
● Household
· direct · ~0.92
Mother
Augusta Montgomery
b. ~1860
Source mother
● Household
· direct · ~0.92
Mother
Augusta Montgomery
b. ~1860
Source mother
● Household
· direct · ~0.92
Mother
Augusta Montgomery
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Lois Montgomery
b. ~1892
Source mother
● Household
· direct · ~0.6
This person
Anchor record
John Montgomery
Son · 1920 · age 20 · b. ~1900 · Colorado
★ You are viewing this record
Sibling
Stella Montgomery
Sibling · 1920 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maud Montgomery
Sibling · 1920 · age 15
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
1920 US Federal Census — Arapahoe, Colorado
Open full size
1920 US Federal Census — Arapahoe, Colorado
Page Contents
32 people indexed on this census page (ia:1920:14thcensusofpopu155unit:0733)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mabel H Curtis | 23 | Daughter | Teacher | Colorado |
| 52 | John W Montgomery | 70 | Head | — | Kentucky |
| 53 | Augusta J Montgomery | 60 | Wife | — | Kansas |
| 54 | John W Jr Montgomery THIS PERSON | 20 | Son | Laborer | Colorado |
| 55 | Maud Montgomery | 15 | Daughter | School Girl | Colorado |
| 56 | Stella Montgomery | 25 | Daughter | House Work | Colorado |
| 57 | Walter H Franklin | 47 | Head | Traveling Salesman | Missouri |
| 58 | Mabel K Franklin | 42 | Wife | — | Illinois |
| 59 | Joseph K Franklin | 16 | Son | Student | Colorado |
| 60 | William A Vanask | 33 | Head | Laborer | Illinois |
| 61 | Lena Vanask | 31 | Wife | — | Illinois |
| 62 | Lowell G Vanask | 12 | Son | — | Illinois |
| 63 | Algera Vanask | 10 | Son | — | Illinois |
| 64 | Lucy V Vanask | 8 | Daughter | — | Colorado |
| 65 | Isabelle Vanask | 6 | Daughter | — | Colorado |
| 66 | William A Jr Vanask | 1 | Son | — | Colorado |
| 67 | Flor Ashbaugh | 44 | Head | Attorney At Law | Missouri |
| 68 | Carrie M Ashbaugh | 44 | Wife | — | Iowa |
| 69 | Mildred H Ashbaugh | 15 | Daughter | Student | Colorado |
| 70 | Gwendolin Ashbaugh | 14 | Daughter | Student | Colorado |
| 71 | Garnet S Ashbaugh | 8 | Son | School Boy | Colorado |
| 72 | Bennett M Ashbaugh | 5 | Son | — | Colorado |
| 73 | Albert Dupont | 50 | Head | Caretaker | Belgium |
| 74 | Emily Dupont | 32 | Wife | Caretaker | Russia |
| 75 | Claude L Pott | 34 | Head | Foreman | Colorado |
| 76 | Julia Pott | 31 | Wife | — | Colorado |
| 77 | Doris M Pott | 3 | Daughter | — | Colorado |
| 78 | Richard Pott | 1 | Son | — | Colorado |
| 79 | Robert B Helm | 27 | Brother in law | — | Colorado |
| 80 | Arthur Marriott | 54 | Head | Teacher | England |
| 81 | Alice Cullen | 74 | Head | — | Ireland |
| 82 | Florence Cullen | 46 | Daughter | — | Colorado |
Pedigree Summary
John + 2 siblings
Gen 1 · 6 parents
~0.87
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)