MM
Margaret Mccarthy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Margaret Mccarthy across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Charles & Charles — first a head (b.~1913), then head of a 3-person household.
Age 27
b. ~1913
Female
Head
Born: Maryland
Divorced
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | McCarthy |
| Given Name | Margaret C. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Divorced |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Hours Worked | 5 |
| Highest Grade | No 8 |
| 1935 Residence | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1913 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Jean Mccarthy | Daughter | — | 6 | ~1934 |
| Margaret Mccarthy | Head | — | 27 | ~1913 |
| Charles Mccarthy | Son | — | 3 | ~1937 |
Census Appearances
1920
Baltimore, Maryland
Daughter, age 6
Baltimore, Maryland · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Daughter, age 16
Baltimore, Maryland · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 27
Baltimore-City-County, Maryland · implied b. ~1913 — 3 household members
| Surname | McCarthy |
| Given Name | Margaret C. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Divorced |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Hours Worked | 5 |
| Highest Grade | No 8 |
| 1935 Residence | Maryland |
| 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 Margaret Mccarthy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Mccarthy (~0.92 confidence) and father Charles Mccarthy (~0.92 confidence) and mother Stella Mccarthy (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Mccarthy
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Charles Mccarthy
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Stella Mccarthy
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Mccarthy
Head · 1940 · age 27 · b. ~1913 · Maryland
★ 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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01521-00121)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret C. Mccarthy THIS PERSON | 27 | Head | — | Maryland |
| 2 | Jean A. Mccarthy | 6 | Daughter | — | Maryland |
| 3 | Charles E. Mccarthy | 3 | Son | — | Maryland |
| 4 | Della Lewis | 52 | Head | Maid | Maryland |
| 5 | James B. Lewis | 17 | Son | Stock Boy | Maryland |
| 6 | Daniel F. Lewis | 14 | Son | — | Maryland |
| 7 | Dora Brookman | 35 | Lodger | Waitress | West Virginia |
| 8 | Extra Line | None | — | — | — |
| 9 | Albert J. Mcclain | 35 | Head | Chauffeur | Maryland |
| 10 | Agnes A. Mcclain | 37 | Wife | Seamstress | Pennsylvania |
| 11 | William E. Knight | 76 | Head | Handy Man | Maryland |
| 12 | Sarah A. Knight | 72 | Wife | — | Maryland |
| 13 | Wilson A. Mcclain | 59 | Head | Laborer | Pennsylvania |
| 14 | Mary C. Mcclain | 57 | Sister | — | Pennsylvania |
| 15 | William E. Hunt | 77 | Head | — | Maryland |
| 16 | Mary E. Hunt | 80 | Wife | — | Maryland |
| 17 | Catherine Hampshire | 46 | Head | Machine Operator | Maryland |
| 18 | Edgar H. Hampshire | 21 | Son | Apprentice Plasterer | Maryland |
| 19 | Carl C. Hampshire | 18 | Son | Helper | Maryland |
| 20 | Elva Mae Hampshire | 16 | Daughter | — | Maryland |
| 21 | David J. Rakner | 44 | Head | Floor Layer | Maryland |
| 22 | Goldie E. Rakner | 44 | Wife | — | Maryland |
| 23 | David G. Rakner | 24 | Son | Chauffeur | Maryland |
| 24 | Thomas D. Rakner | 21 | Son | Lather | Maryland |
| 25 | Rose Shaffer | 26 | Daughter | Spinner | Maryland |
| 26 | Douglas R. Shaffer | 4 | Grandson | — | Maryland |
| 27 | Geraldine V. Smith | 8 | Granddaughter | — | Maryland |
| 28 | John Measures | 33 | Head | Laborer | Maryland |
| 29 | Mary Measures | 23 | Wife | — | Maryland |
| 30 | Frances Measures | 4 | Daughter | — | Maryland |
| 31 | Nancy Measures | 2 | Daughter | — | Maryland |
| 32 | Clair V. Danmyer | 39 | Head | House Cleaner | Maryland |
| 33 | Joseph L. Danmyer | 20 | Son | Laborer | Maryland |
| 34 | Anna Mae Danmyer | 17 | Daughter | Nurse Maid | Maryland |
| 35 | Helen K. C. Danmyer | 15 | Daughter | — | Maryland |
| 36 | Pearl V. Danmyer | 13 | Daughter | — | Maryland |
| 37 | Marie L. Danmyer | 11 | Daughter | — | Maryland |
| 38 | Joseph H. Danmyer | 8 | Son | — | Maryland |
| 39 | William F. French | 49 | Head | Garage Man | Maryland |
| 40 | Jessie M. French | 42 | Wife | — | Maryland |
Pedigree Summary
Margaret
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)