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Margaret Thomas — 1930 US Census Record
Model Tree available1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Margaret Thomas across the 1910, 1920 and 1930 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed), with identified parents John & Walter — first a daughter (b.~1908), then head of a 4-person household.
Age 22
b. ~1908
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore 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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Thomas | Daughter | — | 22 | ~1908 |
| John Thomas | Head | — | 59 | ~1871 |
| Margaret Thomas | Other | — | 57 | ~1873 |
| John Thomas | Son | — | 25 | ~1905 |
Census Appearances
1910
Baltimore, Maryland
Daughter, age 2
Baltimore, Maryland · implied b. ~1908 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Baltimore, Maryland
Daughter, age 12
Baltimore, Maryland · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Daughter, age 22
Baltimore, Maryland · implied b. ~1908 — 4 household members
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| 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 |
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 Thomas across 3 US Census years (1910, 1920 and 1930) in Baltimore, Maryland, using XGBoost record linkage. Identified parents: father John Thomas (~0.92 confidence) and father Walter Thomas (~0.92 confidence) and mother Lillie Thomas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Thomas
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Walter Thomas
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Lillie Thomas
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Thomas
Daughter · 1930 · age 22 · b. ~1908 · Maryland
★ You are viewing this record
Sibling
John Thomas
Sibling · 1930 · age 25
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 — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus853unit:0381)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ray M. Boyack | 24 | Roomer | Musician | Utah |
| 2 | William D. Wood | 22 | — | Student | Canada |
| 3 | Frank G. Stephens | 22 | — | Musician | Utah |
| 4 | Frederick Gross | 36 | Head | Pharmacist | Maryland |
| 5 | Lillie Gross | 32 | Wife-H | — | Maryland |
| 6 | Christian Gross | 8 | Son | — | Maryland |
| 7 | Rita Gross | 3 | Daughter | — | Maryland |
| 8 | Conrad W. Kroeker | 34 | Head | Electrician | Germany |
| 9 | Hattie Kroeker | 33 | Wife-H | — | Maryland |
| 10 | Conrad Jr. Kroeker | 10 | Son | — | Maryland |
| 11 | William Vollmerhaus | 30 | Head | Painter | Maryland |
| 12 | Helen Vollmerhaus | 26 | Wife-H | — | Maryland |
| 13 | William J. Vollmerhaus | 4 | Son | — | Maryland |
| 14 | Elizabeth Brown | 43 | Head | Housekeeper | Maryland |
| 15 | Dorothy Brown | 18 | Daughter | Layout Clerk | Maryland |
| 16 | Frederick Brown | 17 | Son | Cabinet Maker | Maryland |
| 17 | Martin Englert | 57 | Head | Baker | Germany |
| 18 | Ida Englert | 52 | Wife-H | — | Germany |
| 19 | Carl Donder | 30 | Son-in-law | Chauffeur | Maryland |
| 20 | Maybelle Donder | 26 | Daughter | — | Maryland |
| 21 | Guy Donder | 2 | Grandson | — | Maryland |
| 22 | Catherine Heidenreich | 50 | Head | Operator | Maryland |
| 23 | Robert Heidenreich | 24 | Son | Shipping Clerk | Maryland |
| 24 | Robert Heidenreich | 23 | Son | Machinist | Maryland |
| 25 | Catherine Heidenreich | 19 | Daughter-in-law | — | Maryland |
| 26 | Robert Jr. Heidenreich | 0 | Grandson | — | Maryland |
| 27 | Frederick T. Keil | 30 | Head | Oil Truck | Maryland |
| 28 | Anna B. Keil | 28 | Wife-H | — | Maryland |
| 29 | Frederick Jr. Keil | 1 | Son | — | Maryland |
| 30 | John Schauffer | 40 | Head | Saleslady | Maryland |
| 31 | John Jr. Schauffer | 13 | Son | — | Maryland |
| 32 | Martha Hager | 73 | Mother-in-law | — | Germany |
| 33 | Anthony B. Hager | 40 | Son | Salesman | Maryland |
| 34 | Gertrude Hager | 39 | Daughter | Saleslady | Maryland |
| 35 | Daniel Bury | 58 | Head | Brewer | Maryland |
| 36 | Marie M. Bury | 54 | Wife-H | — | Maryland |
| 37 | Charles G. Bury | 31 | Son | Draftsman | Maryland |
| 38 | Harry B. Deming | 53 | Head | Engineer | Maryland |
| 39 | Elizabeth Deming | 51 | Wife-H | Asst. Cashier | Maryland |
| 40 | Harry B. Jr. Deming | 19 | Son | Counter | Maryland |
| 41 | Elizabeth Deming | 17 | Daughter | — | Maryland |
| 42 | Augusta Bosse | 54 | Sister-in-law | — | Maryland |
| 43 | George Mahlon | 31 | Head | Steam Shovel Eng. | Maryland |
| 44 | Violet Mahlon | 27 | Wife-H | — | Maryland |
| 45 | Marion Mahlon | 8 | Daughter | — | Maryland |
| 46 | George Jr. Mahlon | 5 | Son | — | Maryland |
| 47 | John Thomas | 59 | Head | Office Clerk | Maryland |
| 48 | Margaret Thomas | 57 | Wife-H | — | Maryland |
| 49 | John Jr. Thomas | 25 | Son | — | Maryland |
| 50 | Margaret Thomas THIS PERSON | 22 | Daughter | — | Maryland |
Pedigree Summary
Margaret + 1 sibling
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)