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Mary Montgomery — 1940 US Census Record
Model Tree available1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this Mary Montgomery across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed), with identified parents James & Alice — first a daughter (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Female
Daughter
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Montgomery |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City & County |
| 1935 Residence (County) | Denver |
| Additional Details | |
| Occupation | Presser |
| Industry | Cleaning |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 720 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Presser |
| Township / Ward | Denver City County |
| Est. Birth Year | ~1912 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Nellie Montgomery | Daughter | — | 22 | ~1918 |
| Margaret Montgomery | Daughter | — | 25 | ~1915 |
| Mary Montgomery | Daughter | — | 28 | ~1912 |
| Alice Montgomery | Head | — | 59 | ~1881 |
Census Appearances
1920
Denver, Colorado
Daughter, age 8
Denver, Colorado · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Montgomery |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Colorado |
| Mother's Birthplace | Colorado |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Denver, Colorado
Daughter, age 18
Denver, Colorado · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Montgomery |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Colorado |
| Mother's Birthplace | Colorado |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Daughter, age 28
Denver-County, Colorado · implied b. ~1912 — 4 household members
| Surname | Montgomery |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City & County |
| 1935 Residence (County) | Denver |
| Occupation | Presser |
| Industry | Cleaning |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 720 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 Mary Montgomery across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Montgomery (~0.92 confidence) and mother Alice Montgomery (~0.92 confidence) and mother Alice Montgomery (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Montgomery
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Alice Montgomery
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Alice Montgomery
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Montgomery
Daughter · 1940 · age 28 · b. ~1912 · Colorado
★ You are viewing this record
Sibling
Margaret Montgomery
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Montgomery
Sibling · 1940 · age 22
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 — Denver-County, Colorado
Open full size
1940 US Federal Census — Denver-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00484-00977)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Fay Kennedy | 7 | Daughter | — | Colorado |
| 42 | Emil Schultz | 44 | Head | Shipping Clerk | Missouri |
| 43 | Sophie Schultz | 41 | Wife | — | Colorado |
| 44 | Earl Schultz | 11 | Son | — | Colorado |
| 45 | Kenneth Schultz | 9 | Son | — | Colorado |
| 46 | Glenn Schultz | 7 | Son | — | Colorado |
| 47 | Gloria Schultz | 5 | Daughter | — | Colorado |
| 48 | Frank G. Roark | 33 | Head | Trucker | Colorado |
| 49 | Thelma Roark | 34 | Wife | — | Colorado |
| 50 | Eleanor Roark | 7 | Daughter | — | Colorado |
| 51 | Barbara Roark | 2 | Daughter | — | Colorado |
| 52 | George F. Alden | 50 | Head | — | Tennessee |
| 53 | Edna Yandow | 23 | Daughter | — | Illinois |
| 54 | Harry F. Leslie | 54 | Head | Salesman | Colorado |
| 55 | Sara D. Leslie | 49 | Wife | — | Ireland |
| 56 | Jody H. Kissel | 25 | Son-in-law | Salesman | Illinois |
| 57 | Jennette Kissel | 24 | Daughter | Office | Colorado |
| 58 | Judith A. Kissel | 2 | Granddaughter | — | Colorado |
| 59 | Archie Northway | 43 | Head | Collector | Colorado |
| 60 | Clara Northway | 36 | Wife | — | Colorado |
| 61 | Robert Northway | 19 | Son | Helper | Colorado |
| 62 | Edward Northway | 18 | Son | Teacher | Colorado |
| 63 | Melodia Flack | 75 | Mother-in-law | — | France |
| 64 | James Weldon | 39 | Head | Fireman | Arkansas |
| 65 | Sarah Weldon | 35 | Wife | — | Indiana |
| 66 | James E. Weldon | 19 | Son | — | Nebraska |
| 67 | Lois E. Weldon | 18 | Daughter | — | Nebraska |
| 68 | Marvin D. Weldon | 13 | Son | — | Nebraska |
| 69 | Ella Louise Weldon | 11 | Daughter | — | Nebraska |
| 70 | Joseph Piccoli | 32 | Head | Meatcutter | Colorado |
| 71 | Catherine Piccoli | 32 | Wife | — | Texas |
| 72 | Jo Ann Piccoli | 5 | Daughter | — | Colorado |
| 73 | Ray Piccoli | 3 | Son | — | Colorado |
| 74 | Peter Piccoli | 1 | Son | — | Colorado |
| 75 | Alice Montgomery | 59 | Head | — | Colorado |
| 76 | Mary E. Montgomery THIS PERSON | 28 | Daughter | Presser | Colorado |
| 77 | Margaret O. Montgomery | 25 | Daughter | Bookkeeper | Colorado |
| 78 | Nellie E. Montgomery | 22 | Daughter | Asst Buyer | Colorado |
| 79 | Frank Campbell | 46 | Head | Shipping Clerk | Nebraska |
| 80 | Ruth Campbell | 40 | Wife | — | Nebraska |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 3 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)