DM
Donald Martin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Donald Martin across the 1920 and 1930 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a son (b.~1912), then head of a 10-person household.
Age 18
b. ~1912
Male
Son
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Martin |
| Given Name | Donald Austin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| 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 Hillsdale |
| Est. Birth Year | ~1912 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Mildred Martin | Daughter | — | 14 | ~1916 |
| Donald Martin | Son | — | 18 | ~1912 |
| Wm Martin | Son | — | 22 | ~1908 |
| William Martin | Head | — | 60 | ~1870 |
| Mary Martin | Other | — | 52 | ~1878 |
| Thomas Martin | Son | — | 25 | ~1905 |
| James Martin | Son | — | 23 | ~1907 |
| John Martin | Son | — | 9 | ~1921 |
| Mary Martin | Daughter | — | 16 | ~1914 |
| Carole Martin | Son | — | 12 | ~1918 |
Census Appearances
1920
Baltimore, Maryland
Son, age 8
Baltimore, Maryland · implied b. ~1912 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Donald E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| 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
Son, age 18
Baltimore, Maryland · implied b. ~1912 — 10 household members
| Surname | Martin |
| Given Name | Donald Austin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| 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 Donald Martin across 2 US Census years (1920 and 1930) in Baltimore, Maryland, using XGBoost record linkage.
Show:
This person
Anchor record
Donald Martin
Son · 1930 · age 18 · b. ~1912 · Maryland
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Sibling
John Martin
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Martin
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Martin
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carole Martin
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wm Martin
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Martin
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Martin
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:1930:15thcensus871unit:0337)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Frank Moan | 37 | Boarder | Wide-Halter | Maryland |
| 52 | Richard H. Ginnamory | 27 | Head | Plumber | Maryland |
| 53 | William T. Martin | 60 | Head | Electrician | Maryland |
| 54 | Mary J. Martin | 52 | Wife-H | Housewife | Maryland |
| 55 | Thomas F. Martin | 25 | Son | Engineer | Maryland |
| 56 | James E. Martin | 23 | Son | Engineer | Maryland |
| 57 | Wm Joseph Martin | 22 | Son | Chauffeur | Maryland |
| 58 | Donald Austin Martin THIS PERSON | 18 | Son | — | Maryland |
| 59 | Mary J. Martin | 16 | Daughter | — | Maryland |
| 60 | Mildred Martin | 14 | Daughter | — | Maryland |
| 61 | Carole E. Martin | 12 | Son | — | Maryland |
| 62 | John T. Martin | 9 | Son | — | Maryland |
| 63 | Malcolm J. Fallon | 30 | Head | Inspector | Maryland |
| 64 | Vilda M. Fallon | 28 | Wife-H | Housewife | Maryland |
| 65 | Lou Mae Fallon | 7 | Daughter | None | Maryland |
| 66 | Betty S. Fallon | 4 | Daughter | None | Maryland |
| 67 | Virginia S. Burke | 54 | Head-H | — | Maryland |
| 68 | Edna E. Burke | 33 | Daughter | Laundress | Maryland |
| 69 | Irma A. Burke | 27 | Daughter | Saleslady | Maryland |
| 70 | Joseph F. Burke | 23 | Son | Painter | Maryland |
| 71 | Theresa A. Harris | 26 | Daughter | Housewife | Maryland |
| 72 | Jack F. Harris | 0 | Grandson | None | Maryland |
| 73 | John F. Burke | 59 | Brother | Painter | Maryland |
| 74 | Joe E. Murphy | 64 | Head-H | Housewife | Maryland |
| 75 | James J. Murphy | 33 | Son | Clerk | Maryland |
| 76 | William J. Murphy | 30 | Son | Operator | Maryland |
| 77 | Anna M. Murphy | 24 | Daughter | Housekeeper | Maryland |
| 78 | Agnes M. Murphy | 22 | Daughter | Typist | Maryland |
| 79 | Margaret J. Murphy | 18 | Daughter | Typist | Maryland |
| 80 | Elizabeth L. Murphy | 18 | Daughter | — | Maryland |
| 81 | Alice A. Murray | 25 | Daughter | — | Maryland |
| 82 | Aloysius J. Murray | 27 | Son-in-law | Printer | Maryland |
| 83 | Mary E. Murray | 1 | Granddaughter | None | Maryland |
| 84 | Amos S. Davis | 38 | Head | Mechanic | Maryland |
| 85 | Grace M. Davis | 29 | Wife-H | None | Maryland |
| 86 | Grace E. Davis | 11 | Daughter | None | Maryland |
| 87 | Mary J. Davis | 10 | Daughter | None | Maryland |
| 88 | Amos S. Jr. Davis | 8 | Son | None | Maryland |
| 89 | Adelle B. Davis | 6 | Daughter | None | Maryland |
| 90 | Julia E. Davis | 4 | Daughter | None | Maryland |
| 91 | Norma M. Davis | 3 | Daughter | None | Maryland |
| 92 | Charles W. Ruchert | 22 | Head | Salesman | Maryland |
| 93 | Mary E. Ruchert | 56 | Mother-H | None | Maryland |
| 94 | Adolph E. Baker | 56 | Head | Minister | Illinois |
| 95 | Blanch E. Baker | 49 | Wife-H | None | Pennsylvania |
| 96 | Dorothy E. Redding | 21 | Daughter | Operator | North Carolina |
| 97 | Julia F. Diffey | 77 | Head | None | Maryland |
| 98 | Rusling P. Haight | 25 | Roomer | Painter | Maryland |
| 99 | Fern Haight | 20 | Roomer | None | Maryland |
| 100 | Doris J. Haight | 1 | Roomer | 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)