MM
Margaret Mcgrath — 1940 US Census Record
Model Tree available1940 United States Federal Census · Dallas-County, Texas
Our Model Tree links this Margaret Mcgrath across the 1920, 1930 and 1940 US Censuses in Dallas-County, Texas (XGBoost, ~Confirmed), with identified parents Katherine & Thomas — first a daughter (b.~1892), then head of a 3-person household.
Age 48
b. ~1892
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Dallas-County, Texas |
| Surname | McGrath |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Dallas City |
| 1935 Residence (County) | Dallas |
| Additional Details | |
| Occupation | Office clerk |
| Industry | Bureau of Internal Revenue |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1740 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Office Clerk |
| Township / Ward | Dallas City |
| Est. Birth Year | ~1892 |
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 |
|---|---|---|---|---|
| Margaret Mcgrath | Daughter | — | 48 | ~1892 |
| Katherine Mcgrath | Head | — | 75 | ~1865 |
| Edward Mcgrath | Son | — | 43 | ~1897 |
Census Appearances
1920
Dallas, Texas
Daughter, age 28
Dallas, Texas · implied b. ~1892 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Clerk |
| Industry | Dry Goods |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Dallas, Texas
Daughter, age 39
Dallas, Texas · implied b. ~1891 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Margaret M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Northern Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Dallas-County, Texas
Daughter, age 48
Dallas-County, Texas · implied b. ~1892 — 3 household members
| Surname | McGrath |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Dallas City |
| 1935 Residence (County) | Dallas |
| Occupation | Office clerk |
| Industry | Bureau of Internal Revenue |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1740 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Mcgrath across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Katherine Mcgrath (~0.92 confidence) and father Thomas Mcgrath (~0.92 confidence) and mother Catherine Mcgrath (~0.92 confidence) and mother Katie Mcgrath (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Katherine Mcgrath
b. ~1865
Source mother
● Household
· direct · ~0.92
Father
Thomas Mcgrath
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Catherine Mcgrath
b. ~1867
Source mother
● Household
· direct · ~0.92
Mother
Katie Mcgrath
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Mcgrath
Daughter · 1940 · age 48 · b. ~1892 · Texas
★ You are viewing this record
Sibling
Edward Mcgrath
Sibling · 1940 · age 43
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 — Dallas-County, Texas
Open full size
1940 US Federal Census — Dallas-County, Texas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04172-00875)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dorsey Moody | 25 | Lodger | Salesman | Florida |
| 42 | Emma Anne Webster | 53 | Lodger | Steno-Clerk | Indiana |
| 43 | Fred Flores | 27 | Head | Waiter | Philippine |
| 44 | Lucy Flores | 27 | Wife | — | Texas |
| 45 | James Flores | 3 | Son | — | Texas |
| 46 | Mccordy E. Idle | 57 | Lodger | Civil Engineer | Missouri |
| 47 | Natalie M. Idle | 57 | Lodger | — | Louisiana |
| 48 | Marie Harrison | 21 | Head | Delivery Man | Texas |
| 49 | Annabelle Harrison | 21 | Wife | — | Texas |
| 50 | Robert W. Harrison | 1 | Son | — | Texas |
| 51 | Mary C. Scott | 75 | Head | — | Canada-English |
| 52 | A. O. B. Altick | 45 | Lodger | Cotton Broker | Georgia |
| 53 | Mazie Becker | 50 | Head | — | Maryland |
| 54 | Francis Becker | 27 | Daughter | Office Clerk | Maryland |
| 55 | Barbara Becker | 19 | Daughter | Stenographer | Texas |
| 56 | Edward Becker | 18 | Son | Clerk | Texas |
| 57 | Evelyn Johnson | 28 | Head | Supervisor | Oklahoma |
| 58 | Elmer E. Mussbaum | 41 | Head | Electrician | Kansas |
| 59 | Ellen Mussbaum | 36 | Wife | Beautician | Scotland |
| 60 | Junell Mussbaum | 16 | Daughter | — | Texas |
| 61 | Hulbert Mussbaum | 9 | Son | — | Texas |
| 62 | Agnes A. Dickinson | 62 | Mother-in-law | — | England |
| 63 | Mary A. Brewster | 46 | Head | Clerical Work | Mississippi |
| 64 | Joe Mundella | 41 | Brother | Floor Walker | Texas |
| 65 | Anne Mundella | 34 | Sister-in-law | — | Texas |
| 66 | Katherine Mcgrath | 75 | Head | — | New York |
| 67 | Margaret M. Mcgrath THIS PERSON | 48 | Daughter | Office Clerk | Illinois |
| 68 | Edward P. Mcgrath | 43 | Son | Office Clerk | Texas |
| 69 | Joseph P. Rohling | 69 | Head | — | Texas |
| 70 | Georgia Rohling | 58 | Wife | — | Louisiana |
| 71 | Jessie Beawell | 54 | Head | — | Arkansas |
| 72 | Hallie Outes | 65 | Lodger | — | Texas |
| 73 | Walter Shellum | 37 | Head | Salesman | Maryland |
| 74 | Lucille Shellum | 34 | Wife | Typist | Texas |
| 75 | Warren H. Plaster | 50 | Head | — | Nebraska |
| 76 | Verna V. Plaster | 50 | Wife | — | Iowa |
| 77 | Charles M. Ivers | 56 | Head | Cashier | Missouri |
| 78 | Amelia Ivers | 56 | Wife | — | Ohio |
| 79 | Earl Wayne Krizan | 33 | Head | Supervisor | Texas |
| 80 | Grace Krizan | 33 | Wife | Auditor | Texas |
Pedigree Summary
Margaret + 1 sibling
Gen 1 · 4 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)