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Margaret Mcgrath — 1930 US Census Record
Model Tree available1930 United States Federal Census · St Louis, Missouri
Our Model Tree links this Margaret Mcgrath across the 1920, 1930 and 1940 US Censuses in St Louis, Missouri (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1892), then head of a 5-person household.
Age 38
b. ~1892
Female
Daughter
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | St Louis, Missouri |
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Missouri |
| Additional Details | |
| Occupation | School Teacher |
| Industry | School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Teacher |
| Township / Ward | Rock Hill Town |
| 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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Lois Mcgrath | Daughter | — | 26 | ~1904 |
| Mary Mcgrath | Spouse | — | 64 | ~1866 |
| Josephine Mcgrath | Daughter | — | 36 | ~1894 |
| Margaret Mcgrath | Daughter | — | 38 | ~1892 |
| John Mcgrath | Head | — | 67 | ~1863 |
Census Appearances
1920
St Louis, …
Daughter, age 26
St Louis, Missouri · implied b. ~1894 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Margaret E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Missouri |
| Occupation | Teacher |
| Industry | Grades |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
St Louis, …
Daughter, age 38
St Louis, Missouri · implied b. ~1892 — 5 household members
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Missouri |
| Occupation | School Teacher |
| Industry | School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
St.-Louis-County, Missouri
Other, age 48
St.-Louis-County, Missouri · implied b. ~1892 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Grath |
| Given Name | Margaret |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Rock Hill Town |
| 1935 Residence (County) | St. Louis |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 30 |
| Income (1939) | 1735 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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: father John Mcgrath (~0.92 confidence) and father John Mcgrath (~0.92 confidence) and mother Mary Mcgrath (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Mcgrath
b. ~1857
Source father
● Household
· direct · ~0.92
Father
John Mcgrath
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Mary Mcgrath
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Mcgrath
Daughter · 1930 · age 38 · b. ~1892 · Missouri
★ You are viewing this record
Sibling
Josephine Mcgrath
Sibling · 1930 · age 36
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Mcgrath
Sibling · 1930 · age 26
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
1930 US Federal Census — St Louis, Missouri
Open full size
1930 US Federal Census — St Louis, Missouri
Page Contents
50 people indexed on this census page (ia:1930:missouricensus00reel1224:0564)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | B. John Pleiss | 42 | Head | Night Watchman | Missouri |
| 2 | Hattie Pleiss | 40 | Wife | — | Missouri |
| 3 | Edna Hartman | 22 | Step daughter | Tel. Operator | Missouri |
| 4 | E. Virgil Wagner | 40 | Head | District Manager | Missouri |
| 5 | J. Jessie Wagner | 34 | Wife | — | Missouri |
| 6 | Mary Jane Wagner | 10 | Daughter | — | Missouri |
| 7 | J. William Leahy | 33 | Head | Secretary | South Dakota |
| 8 | J. Ruth Leahy | 33 | Wife | — | Missouri |
| 9 | Marlene Leahy | 8 | Daughter | — | Missouri |
| 10 | D. Toury Wagner | 31 | Head | Carpenter | Missouri |
| 11 | Meredith Wagner | 24 | Wife | — | Missouri |
| 12 | C. Charles Beals | 38 | Head | Mechanical Eng. | Missouri |
| 13 | Freda Beals | 36 | Wife | — | Illinois |
| 14 | Willis Beals | 9 | Daughter | — | Missouri |
| 15 | Robert Beals | 7 | Son | — | Missouri |
| 16 | C. Roy Rogers | 39 | Head | Fireman | Missouri |
| 17 | Edna Rogers | 37 | Wife | — | Missouri |
| 18 | Marjorie Rogers | 6 | Daughter | — | Missouri |
| 19 | Robert Rogers | 1 | Son | — | Missouri |
| 20 | M. Sam Smart | 58 | Head | Mail Carrier | Missouri |
| 21 | Nellie Smart | 52 | Wife | — | Missouri |
| 22 | John Dyer | 32 | Son-in-law | Transportation | Missouri |
| 23 | Ruth Dyer | 28 | Daughter | — | Missouri |
| 24 | W. William Smart | 27 | Son | Garageman | Missouri |
| 25 | Mary Ruth Smart | 7 | Granddaughter | — | Missouri |
| 26 | G. Edward Schall | 59 | Head | Title Examiner | Illinois |
| 27 | M. Cora Schall | 58 | Wife | — | Missouri |
| 28 | Hildegarde Schall | 19 | Daughter | Typist | Missouri |
| 29 | Benny Schall | 17 | Son | — | Missouri |
| 30 | Louis Schall | 15 | Son | — | Missouri |
| 31 | Adrian De Yong | 28 | Head | Special Representative | Missouri |
| 32 | Louise De Yong | 23 | Wife | — | Missouri |
| 33 | P. William Mcgrath | 38 | Head | Section Foreman | Iowa |
| 34 | Cora Mcgrath | 36 | Wife | — | Missouri |
| 35 | P. William Mcgrath | 5 | Son | — | Missouri |
| 36 | Joseph Maravaglia | 45 | Head | Laborer | Italy |
| 37 | Caroline Maravaglia | 41 | Wife | — | Italy |
| 38 | Frank Venegoni | 20 | Step-son | Sales Clerk | Missouri |
| 39 | Clara Venegoni | 17 | Step-daughter | Sales Clerk | Missouri |
| 40 | James Puricelli | 37 | Head | Carpenter | Wisconsin |
| 41 | Mable Puricelli | 32 | Wife | — | Missouri |
| 42 | Charles Puricelli | 10 | Son | — | Missouri |
| 43 | John Mcgrath | 67 | Head | Foreman | Vermont |
| 44 | Mary Mcgrath | 64 | Wife | — | Missouri |
| 45 | Margaret Mcgrath THIS PERSON | 38 | Daughter | School Teacher | Iowa |
| 46 | Josephine Mcgrath | 36 | Daughter | Teacher | Missouri |
| 47 | Lois Mary Mcgrath | 26 | Daughter | — | Missouri |
| 48 | J. Adam Maurer | 29 | Head | Carpenter | Indiana |
| 49 | E. Edith Maurer | 35 | Wife | — | Missouri |
| 50 | L. Vincent Maurer | 12 | Son | — | Missouri |
Pedigree Summary
Margaret + 2 siblings
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 1930 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)