MH
Mary Horn — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Mary Horn across the 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1894), then head of a 12-person household.
Age 36
b. ~1894
Female
Spouse
Born: Maryland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Horn |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 16 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Incorporated Place Baltimore City |
| Est. Birth Year | ~1894 |
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.
12 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Frances Horn | Son | — | 4 | ~1926 |
| Betty Horn | Daughter | — | 3 | ~1927 |
| Ernest Horn | Son | — | 3 | ~1927 |
| Alice Horn | Daughter | — | 11 | ~1919 |
| William Horn | Son | — | 9 | ~1921 |
| Mary Reedy | Other | — | 51 | ~1879 |
| Ruth Horn | Daughter | — | 16 | ~1914 |
| Eveline Horn | Daughter | — | 13 | ~1917 |
| Joseph Horn | Other | — | 36 | ~1894 |
| Margaret Horn | Daughter | — | 18 | ~1912 |
| William Horn | Head | — | 46 | ~1884 |
| Mary Horn | Spouse | — | 36 | ~1894 |
Census Appearances
1930
Baltimore, Maryland
Spouse, age 36
Baltimore, Maryland · implied b. ~1894 — 12 household members
| Surname | Horn |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 16 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Other, age 46
Baltimore-City-County, Maryland · implied b. ~1894 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Horn |
| Given Name | Margaret E. |
| Relationship to Head | Sister-in-law |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | BALTIMORE CITY |
| 1935 Residence (County) | Baltimore City |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 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 Horn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Horn
Spouse · 1930 · age 36 · b. ~1894 · Maryland
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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:1930:15thcensus864unit:0646)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Catherine Schlothober | 62 | Head | None | Maryland |
| 52 | Charles Schwartz | 38 | Head | Foreman | Maryland |
| 53 | Annie Schwartz | 34 | Wife | None | Maryland |
| 54 | Herman Schwartz | 13 | Son | Office Boy | Maryland |
| 55 | Beryl Schwartz | 13 | Daughter | None | Maryland |
| 56 | Charles Schwartz | 8 | Son | None | Maryland |
| 57 | William Schwartz | 4 | Son | None | Maryland |
| 58 | Ferdinand Edgert | 46 | Head | Electric Repairman | Germany |
| 59 | Helen Edgert | 17 | Daughter-H | None | Maryland |
| 60 | Martha Edgert | 14 | Daughter | None | Maryland |
| 61 | Charles R. Conner | 59 | Head | Foreman | Maryland |
| 62 | James C. Conner | 6 | Son | None | Maryland |
| 63 | Frederick A. Zellner | 17 | Step son | Filing Clerk | Maryland |
| 64 | Margaret Conner | 9 | Daughter | None | Maryland |
| 65 | Ida Watson | 44 | Head | None | Maryland |
| 66 | Grace Watson | 22 | Daughter | Stenographer | Maryland |
| 67 | Thelma Watson | 19 | Daughter | Operator | Maryland |
| 68 | Walter Shipley | 43 | Head | Elevator Operator | Maryland |
| 69 | Elizabeth Shipley | 43 | Wife | None | Maryland |
| 70 | Genevieve Shipley | 17 | Daughter | File Clerk | Maryland |
| 71 | Christine Shipley | 17 | Daughter | Wrapper | Maryland |
| 72 | Walter Jr. Shipley | 14 | Son | None | Maryland |
| 73 | Dolores Shipley | 11 | Daughter | None | Maryland |
| 74 | Edward G. Lavender | 51 | Head | Printer | Maryland |
| 75 | Mary Lavender | 45 | Wife | None | Maryland |
| 76 | Agnes Lavender | 19 | Daughter | Stenographer | Maryland |
| 77 | Edward Lavender | 15 | Son | None | Maryland |
| 78 | Jane Lavender | 9 | Daughter | None | Maryland |
| 79 | William F. Horn | 46 | Head | Sheet Metal Worker | Maryland |
| 80 | Mary E. Horn THIS PERSON | 36 | Wife | None | Maryland |
| 81 | Margaret Horn | 18 | Daughter | Seamstress | Maryland |
| 82 | Ruth Horn | 16 | Daughter | Seamstress | Maryland |
| 83 | Eveline Horn | 13 | Daughter | None | Maryland |
| 84 | Alice Horn | 11 | Daughter | None | Maryland |
| 85 | William Horn | 9 | Son | None | Maryland |
| 86 | Frances Horn | 4 | Son | None | Maryland |
| 87 | Betty Horn | 3 | Daughter | None | Maryland |
| 88 | Ernest Horn | 3 | Son | None | Maryland |
| 89 | Joseph Horn | 36 | Brother | Laborer | Maryland |
| 90 | Mary Reedy | 51 | Mother-in-law | None | Maryland |
| 91 | Timothy J. Hunt | 66 | Head | None | Irish Free State |
| 92 | William Hunt | 38 | Son | Postman | Maryland |
| 93 | Catha Ellis | 45 | Head | Machine Operator | Virginia |
| 94 | Alma Ellis | 36 | Wife-H | None | Maryland |
| 95 | Elizabeth Ellis | 10 | Daughter | Stenographer | Maryland |
| 96 | Henry Simon | 72 | Head | None | Germany |
| 97 | Leo C. Kammermellen | 29 | Head | Clerk | Maryland |
| 98 | Mary Kammermellen | 27 | Wife-H | None | Maryland |
| 99 | Leona Kammermellen | 7 | Daughter | None | Maryland |
| 100 | Leo Kammermellen | 5 | Son | None | 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)