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John Mcnulty — 1940 US Census Record
Model Tree available1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this John Mcnulty across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed), with identified parents Edward & Alice — first a head (b.~1907), then head of a 4-person household.
Age 33
b. ~1907
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | McNulty |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City |
| 1935 Residence (County) | Denver |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Tin Can Manufacturer |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 210 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Bookkeeper |
| Township / Ward | Denver City |
| Est. Birth Year | ~1907 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Jean Mcnulty | Daughter | — | 1 | ~1939 |
| Caroline Mcnulty | Daughter | — | 3 | ~1937 |
| Margaret Mcnulty | Spouse | — | 27 | ~1913 |
| John Mcnulty | Head | — | 33 | ~1907 |
Census Appearances
1920
Denver, Colorado
Son, age 12
Denver, Colorado · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNulty |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Colorado |
| Mother's Birthplace | Colorado |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Denver, Colorado
Son, age 22
Denver, Colorado · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNulty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Colorado |
| Mother's Birthplace | Colorado |
| Occupation | Clerical |
| Industry | Can Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Head, age 33
Denver-County, Colorado · implied b. ~1907 — 4 household members
| Surname | McNulty |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City |
| 1935 Residence (County) | Denver |
| Occupation | Bookkeeper |
| Industry | Tin Can Manufacturer |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 210 |
| 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 John Mcnulty across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Mcnulty (~0.92 confidence) and mother Alice Mcnulty (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Mcnulty
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Alice Mcnulty
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mcnulty
Head · 1940 · age 33 · b. ~1907 · Colorado
★ You are viewing this record
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-t0627-00488-01023)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lewis H. Sr. Lurker | 70 | Head | Barber | Missouri |
| 2 | Myrtle M. Lurker | 60 | Wife | — | Illinois |
| 3 | Lewis H. Lurker | 27 | Son | Sales Clerk | Nebraska |
| 4 | Dorothy W. Lurker | 24 | Daughter-in-law | — | Nebraska |
| 5 | Robert D. T. Wilheit | 50 | Head | Salesman | Illinois |
| 6 | Evaline T. Wilheit | 49 | Wife | — | Nebraska |
| 7 | Mary Virginia Wilheit | 20 | Daughter | — | Colorado |
| 8 | William Schaefer | 43 | Head | Bookkeeper | Colorado |
| 9 | Emily Schaefer | 45 | Wife | — | Illinois |
| 10 | William Jr. Schaefer | 13 | Son | — | Colorado |
| 11 | Otto M. Schreifer | 54 | Head | Shipping Clerk | Missouri |
| 12 | Florence Schreifer | 27 | Wife | — | Colorado |
| 13 | Betty Jean Schreifer | 9 | Daughter | — | Colorado |
| 14 | Rudolph Linninger | 63 | Head | Stationary Engineer | Kentucky |
| 15 | Flora Linninger | 51 | Wife | — | Ohio |
| 16 | Madlon Linninger | 14 | Daughter | — | Colorado |
| 17 | Stella Melvin | 50 | Head | Bookkeeper | Colorado |
| 18 | Dona Melvin | 17 | Daughter | — | Colorado |
| 19 | Dolores Melvin | 17 | Daughter | — | Colorado |
| 20 | Wait R. Whyman | 40 | Head | Switchman | Colorado |
| 21 | Delores Whyman | 38 | Wife | — | Colorado |
| 22 | Stella Marie Whyman | 14 | Daughter | — | Colorado |
| 23 | — | None | — | — | — |
| 24 | Harold E. Graham | 31 | Head | Mechanic | Illinois |
| 25 | Ruth Graham | 36 | Wife | — | Illinois |
| 26 | Cammann Graham | 13 | Daughter | — | Michigan |
| 27 | John Mcnulty THIS PERSON | 33 | Head | Bookkeeper | Colorado |
| 28 | Margaret Mcnulty | 27 | Wife | — | Missouri |
| 29 | Caroline Mcnulty | 3 | Daughter | — | Colorado |
| 30 | Jean Mcnulty | 1 | Daughter | — | Colorado |
| 31 | Margaret Romley | 66 | Head | — | Colorado |
| 32 | Dwight Romley | 36 | Son | Postman | Colorado |
| 33 | Flora Romley | 43 | Daughter | Teacher | Colorado |
| 34 | Ross Binding | 26 | Lodger | Salesman | Oklahoma |
| 35 | Carven Adams | 26 | Lodger | Engraver | Colorado |
| 36 | George Steigerwald | 69 | Head | Painter | Germany |
| 37 | Margarete Steigerwald | 65 | Wife | — | Germany |
| 38 | Ruth Bridgeford | 46 | Daughter | Clerk | New York |
| 39 | Margaret Bridgeford | 18 | Daughter | — | Colorado |
| 40 | Leslie W. Hanna | 57 | Head | Civil Engineer | Colorado |
Pedigree Summary
John
Gen 1 · 2 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)