WM
William Mccarthy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this William Mccarthy across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed), with identified parents William & Sadie — first a head (b.~1908), then head of a 5-person household.
Age 32
b. ~1908
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | McCarthy |
| Given Name | William F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City |
| 1935 Residence (County) | Denver |
| Additional Details | |
| Occupation | Dentist |
| Industry | private practice |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 924 |
| Highest Grade | C 5 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Dentist |
| Township / Ward | Denver City |
| Est. Birth Year | ~1908 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Nancy Mccarthy | Daughter | — | ~1940 | |
| William Mccarthy | Head | — | 32 | ~1908 |
| Lorraine Nedrow | Other | — | 19 | ~1921 |
| William Mccarthy | Son | — | 1 | ~1939 |
| Eileen Mccarthy | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Denver, Colorado
Son, age 11
Denver, Colorado · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | William D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Nebraska |
| Mother's Birthplace | Colorado |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Denver, Colorado
Son, age 21
Denver, Colorado · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | William S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Nebraska |
| Mother's Birthplace | Colorado |
| Occupation | Dentist |
| Industry | Own Office |
| Class of Worker | E |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Head, age 32
Denver-County, Colorado · implied b. ~1908 — 5 household members
| Surname | McCarthy |
| Given Name | William F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City |
| 1935 Residence (County) | Denver |
| Occupation | Dentist |
| Industry | private practice |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 924 |
| Highest Grade | C 5 |
| 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 William Mccarthy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Mccarthy (~0.92 confidence) and mother Sadie Mccarthy (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Mccarthy
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Sadie Mccarthy
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Mccarthy
Head · 1940 · age 32 · b. ~1908 · 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-t0627-00489-00395)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ruth B. Lemmon | 35 | Wife | — | Colorado |
| 2 | Robert L. Lemmon | 14 | Son | — | Colorado |
| 3 | Charles B. Hughes | 17 | Step Son | — | Colorado |
| 4 | Marilyn M. Hughes | 15 | Daughter | — | Colorado |
| 5 | Alfred D. Hughes | 13 | Step Son | — | Colorado |
| 6 | William F. Mccarthy THIS PERSON | 32 | Head | Dentist | Colorado |
| 7 | Eileen M. G. Mccarthy | 28 | Wife | — | Colorado |
| 8 | William E. Mccarthy | 1 | Son | — | Colorado |
| 9 | Nancy E. Mccarthy | 0 | Daughter | — | Colorado |
| 10 | Lorraine Nedrow | 19 | Servant | Servant | Minnesota |
| 11 | Albert H. Bomash | 32 | Head | Proprietor | Colorado |
| 12 | Melba J. Bomash | 26 | Wife | — | Colorado |
| 13 | Lois E. Bomash | 0 | Daughter | — | Colorado |
| 14 | Cecile E. Bomash | 22 | Sister | Manager | Colorado |
| 15 | Josephine Cruz | 18 | Servant | Servant | New Mexico |
| 16 | Joseph Berckwick | 35 | Head | Salesman | Colorado |
| 17 | Goldie Berckwick | 28 | Wife | — | Colorado |
| 18 | Jacob L. Berman | 39 | Head | Proprietor | Maryland |
| 19 | Goldie Berman | 36 | Wife | — | Pennsylvania |
| 20 | Sandra Lee Berman | 0 | Daughter | — | Colorado |
| 21 | — | None | — | — | — |
| 22 | Homer F. Tarney | 39 | Head | Manager | Oregon |
| 23 | Katherine Tarney | 34 | Wife | — | Arkansas |
| 24 | Richard Tarney | 8 | Son | — | Illinois |
| 25 | Marie H. Hart | 24 | Servant | Servant | Iowa |
| 26 | Lawrence Miller | 42 | Head | Proprietor | Pennsylvania |
| 27 | Rose L. Miller | 38 | Wife | — | Colorado |
| 28 | Henrietta M. Miller | 15 | Daughter | — | Colorado |
| 29 | Gerald W. Miller | 8 | Son | — | Colorado |
| 30 | Sara Ellen Miller | 2 | Daughter | — | Colorado |
| 31 | Mollie H. Schreiner | 23 | Servant | Servant | Montana |
| 32 | Robert H. Taylor | 41 | Head | Engineer | Colorado |
| 33 | Christine L. Taylor | 40 | Wife | — | Illinois |
| 34 | Robert H. Jr. Taylor | 11 | Son | — | Colorado |
| 35 | Richard D. Taylor | 9 | Son | — | Colorado |
| 36 | Dave Cohn | 50 | Head | Proprietor | Russia |
| 37 | Sara Cohn | 48 | Wife | — | Rumania |
| 38 | Samuel J. Duman | 34 | Head | Manager | Poland |
| 39 | Mildred Duman | 27 | Daughter | — | Colorado |
| 40 | Rolet R. Allen | 30 | Servant | Servant | Kansas |
Pedigree Summary
William
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)