RM
Robert Mccarthy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · District-Of-Columbia-County, District of Columbia
Our Model Tree links this Robert Mccarthy across the 1920, 1930 and 1940 US Censuses in District-Of-Columbia-County, District of Columbia (XGBoost, ~Confirmed) — first a head (b.~1871), then head of a 5-person household.
Age 69
b. ~1871
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | District-Of-Columbia-County, District of Columbia |
| Surname | McCarthy |
| Given Name | Robert M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | District of Columbia |
| Additional Details | |
| Occupation | Motorman |
| Industry | Street Car Company |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 1820 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Motorman |
| Township / Ward | Washington |
| Est. Birth Year | ~1871 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Mccarthy | Son | — | 36 | ~1904 |
| Robert Mccarthy | Head | — | 69 | ~1871 |
| Hazel Mccarthy | Daughter | — | 33 | ~1907 |
| Mary Mccarthy | Other | — | 68 | ~1872 |
| Robert Mccarthy | Son | — | 23 | ~1917 |
Census Appearances
1920
District Of …
Head, age 49
District Of Columbia, District of Columbia · implied b. ~1871 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Robert M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | England |
| Mother's Birthplace | Maryland |
| Occupation | Motorman |
| Industry | Street Car Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
None, District …
Head, age 59
None, District of Columbia · implied b. ~1871 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Robert M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 26 |
| Father's Birthplace | England |
| Mother's Birthplace | Maryland |
| Occupation | Motorman |
| Industry | Street Car |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Radio Set | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
District-Of-Columbia-County, District …
Head, age 69
District-Of-Columbia-County, District of Columbia · implied b. ~1871 — 5 household members
| Surname | McCarthy |
| Given Name | Robert M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | District of Columbia |
| Occupation | Motorman |
| Industry | Street Car Company |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 1820 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Robert Mccarthy across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Mccarthy
Head · 1940 · age 69 · b. ~1871 · District of Columbia
★ 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 — District-Of-Columbia-County, District of Columbia
Open full size
1940 US Federal Census — District-Of-Columbia-County, District of Columbia
Page Contents
34 people indexed on this census page (nara:1940:m-t0627-00566-00726)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 7 | John A Jones | 68 | Head | Salesman | Maryland |
| 8 | Pauline A Diesel | 41 | Daughter | — | Illinois |
| 9 | Lois L Diesel | 15 | Granddaughter | — | D.C. |
| 10 | Edna Diesel | 10 | Granddaughter | — | D.C. |
| 11 | Ann Mclachlin | 32 | Lodger | Clerk | Pennsylvania |
| 12 | Virginia Stephens | 35 | Lodger | Clerk | Georgia |
| 13 | Moir H Darnall | 57 | Lodger | — | Iowa |
| 14 | Alice L Treiber | 77 | Lodger | — | Maryland |
| 15 | Ernest W Howard | 43 | Head | Fireman | D.C. |
| 16 | Lillian B Howard | 42 | Wife | — | Missouri |
| 17 | Mary L Howard | 19 | Daughter | — | D.C. |
| 18 | Dimmitt J Howard | 12 | Son | — | D.C. |
| 19 | Doris P Hatch | 52 | Head | Supervisor | Georgia |
| 20 | Mary E Hatch | 78 | Mother | — | Georgia |
| 21 | Martha Mathis | 58 | Lodger | Clerk | Georgia |
| 22 | Velma Crow | 25 | Lodger | Stenographer | Iowa |
| 23 | Eva I Guinn | 60 | Head | Resident Manager | D.C. |
| 24 | Mildred S Dalton | 24 | Daughter | Saleslady | D.C. |
| 25 | Robert M Mccarthy THIS PERSON | 69 | Head | Motorman | Maryland |
| 26 | Mary E Mccarthy | 68 | Mother | — | Maryland |
| 27 | Robert L Mccarthy | 36 | Son | Room Clerk | D.C. |
| 28 | Hazel L Mccarthy | 33 | Daughter | Clerk | D.C. |
| 29 | Robert M Jr Mccarthy | 23 | Son | Clerk | D.C. |
| 30 | Benjamin B Sheppard | 58 | Head | Salesman | Virginia |
| 31 | Ida B Sheppard | 54 | Wife | — | Virginia |
| 32 | Helen B Sheppard | 24 | Daughter | Secretary | D.C. |
| 33 | Elizabeth A Olarr | 29 | Niece | Clerk | D.C. |
| 34 | James P Byrne | 60 | Head | Bartender | Virginia |
| 35 | Margaret S Byrne | 52 | Wife | Clerk | D.C. |
| 36 | Dorothy Byrne | 21 | Daughter | Salesgirl | D.C. |
| 37 | Cornelius B Arehart | 34 | Head | Truck Driver | Virginia |
| 38 | Mary L Arehart | 24 | Wife | — | D.C. |
| 39 | Doris M Arehart | 5 | Daughter | — | D.C. |
| 40 | Carola M Arehart | 3 | Daughter | — | D.C. |
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)