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Mary Welsh — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Mary Welsh across the 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 5-person household.
Age 6
b. ~1924
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Welsh |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1924 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| John Welsh | Son | — | 1 | ~1929 |
| Mary Welsh | Daughter | — | 6 | ~1924 |
| Edwin Welsh | Head | — | 34 | ~1896 |
| Dorothy Welsh | Daughter | — | 4 | ~1926 |
| Ida Welsh | Spouse | — | 29 | ~1901 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 6
Baltimore, Maryland · implied b. ~1924 — 5 household members
| Surname | Welsh |
| Given Name | Mary A. |
| 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 |
1940
Baltimore-City-County, Maryland
Daughter, age 16
Baltimore-City-County, Maryland · implied b. ~1924 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wells |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | H-2 |
| 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 Mary Welsh across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Welsh
Daughter · 1930 · age 6 · b. ~1924 · Maryland
★ You are viewing this record
Sibling
John Welsh
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Welsh
Sibling · 1930 · age 4
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:1930:15thcensus870unit:0077)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lloyd Phillips | 32 | Head | Pipefitter | Maryland |
| 2 | Grace Phillips | 32 | Wife | — | Maryland |
| 3 | Vampie Phillips | 11 | Daughter | — | Maryland |
| 4 | Dorothy Phillips | 5 | Daughter | — | Maryland |
| 5 | Michael Gertrude | 35 | Head | Plasterer | Maryland |
| 6 | Christine Gertrude | 27 | Wife | — | Maryland |
| 7 | Elizabeth Gertrude | 9 | Daughter | — | Maryland |
| 8 | William J. Dorsey | 30 | Head | Electrician | Maryland |
| 9 | Genevieve Dorsey | 27 | Wife | — | Maryland |
| 10 | Doris L. Dorsey | 8 | Daughter | — | Maryland |
| 11 | Charlotte A. Dorsey | 3 | Daughter | — | Maryland |
| 12 | John Welsh | 32 | Head | Plasterer | Maryland |
| 13 | Stella Welsh | 33 | Wife | — | Maryland |
| 14 | Lesta Welsh | 12 | Daughter | — | Maryland |
| 15 | Evelyn Welsh | 9 | Daughter | — | Maryland |
| 16 | Helen Welsh | 7 | Daughter | — | Maryland |
| 17 | Harry M. Hare | 56 | Head | Upholsterer | Maryland |
| 18 | Agnes Hare | 55 | Wife | — | Maryland |
| 19 | Bessie B. Stout | 35 | Daughter | Candy Maker | Maryland |
| 20 | Virginia Stout | 14 | Daughter | — | Maryland |
| 21 | Doris Stout | 12 | Daughter | — | Maryland |
| 22 | John H. Hoffmeister | 38 | Head | Upholsterer | Maryland |
| 23 | Delia Hoffmeister | 35 | Wife | — | Maryland |
| 24 | Ethel Hoffmeister | 15 | Daughter | — | Maryland |
| 25 | John Dilmore | 35 | Head | Iron Worker | Maryland |
| 26 | Marie Dilmore | 31 | Wife | — | Maryland |
| 27 | John Dilmore | 12 | Son | — | Maryland |
| 28 | James Dilmore | 11 | Son | — | Maryland |
| 29 | William Dilmore | 7 | Son | — | Maryland |
| 30 | Albert Eisenhardt | 43 | Head | Sign Painter | Maryland |
| 31 | Barbara Eisenhardt | 38 | Wife | — | Maryland |
| 32 | William E. Eisenhardt | 16 | Son | — | Maryland |
| 33 | Raymond F. Eisenhardt | 13 | Son | — | Maryland |
| 34 | Adelaide Eisenhardt | 8 | Daughter | — | Maryland |
| 35 | John Harper | 30 | Head | — | Maryland |
| 36 | Beatrice Harper | 30 | Wife | — | Maryland |
| 37 | John Harper | 5 | Son | — | Maryland |
| 38 | Milton H. Brown | 30 | Head | Clerk | Maryland |
| 39 | Lillian M. Brown | 30 | Wife | — | Maryland |
| 40 | Margaret Brown | 8 | Daughter | — | Maryland |
| 41 | Milton G. Roach | 34 | Head | — | Maryland |
| 42 | Margaret Roach | 32 | Wife | Line Chief | Maryland |
| 43 | Milton Roach | 15 | Son | — | Maryland |
| 44 | Donald Roach | 13 | Son | — | Maryland |
| 45 | Ronald Roach | 11 | Son | — | Maryland |
| 46 | Edwin Welsh | 34 | Head | — | Maryland |
| 47 | Ida Welsh | 29 | Wife | Plasterer | Maryland |
| 48 | Mary A. Welsh THIS PERSON | 6 | Daughter | — | Maryland |
| 49 | Dorothy J. Welsh | 4 | Daughter | — | Maryland |
| 50 | John R. Welsh | 1 | Son | — | Maryland |
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)