RM
Roy Martin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Washington, Maryland
Our Model Tree links this Roy Martin across the 1920 and 1930 US Censuses in Washington, Maryland (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 10-person household.
Age 12
b. ~1918
Male
Son
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Washington, Maryland |
| Surname | Martin |
| Given Name | Roy H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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 | Election District 13 Conococheague |
| Est. Birth Year | ~1918 |
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 Roy | Age | Birth yr |
|---|---|---|---|---|
| Roy Martin | Son | — | 12 | ~1918 |
| John Martin | Son | — | 10 | ~1920 |
| Edna Martin | Daughter | — | 14 | ~1916 |
| Lloyd Martin | Son | — | 5 | ~1925 |
| Abram Martin | Head | — | 45 | ~1885 |
| Russel Martin | Son | — | 8 | ~1922 |
| Norman Martin | Son | — | 19 | ~1911 |
| Clyde Martin | Son | — | 18 | ~1912 |
| Susie Martin | Other | — | 45 | ~1885 |
| Mabel Martin | Daughter | — | 15 | ~1915 |
Census Appearances
1920
Washington, Maryland
Son, age 2
Washington, Maryland · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Roy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Washington, Maryland
Son, age 12
Washington, Maryland · implied b. ~1918 — 10 household members
| Surname | Martin |
| Given Name | Roy H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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 Roy Martin across 2 US Census years (1920 and 1930) in Washington, Maryland, using XGBoost record linkage.
Show:
This person
Anchor record
Roy Martin
Son · 1930 · age 12 · b. ~1918 · Maryland
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Sibling
Edna Martin
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mabel Martin
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clyde Martin
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Martin
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russel Martin
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lloyd Martin
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norman Martin
Sibling · 1930 · age 19
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 — Washington, Maryland
Open full size
1930 US Federal Census — Washington, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus881unit:0594)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lula M. Cunningham | 51 | Wife-H | — | Maryland |
| 2 | George H. Cunningham | 25 | Son | Salesman | Maryland |
| 3 | Harry L. Cunningham | 23 | Son | General Manager | Maryland |
| 4 | Gladys L. Cunningham | 22 | Daughter | Stenographer | Maryland |
| 5 | Charles J. Grimm | 35 | Head | Merchant | Maryland |
| 6 | Pearl L. Grimm | 29 | Wife-H | — | Maryland |
| 7 | Doris M. Grimm | 2 | Daughter | — | Maryland |
| 8 | L. Frank Carbaugh | 30 | Head | Plasterer | Maryland |
| 9 | Emma B. Carbaugh | 27 | Wife-H | — | Pennsylvania |
| 10 | Kenneth E. Carbaugh | 7 | Son | — | Pennsylvania |
| 11 | G. Leslie Shankau | 61 | Head | — | Maryland |
| 12 | Verne E. Shankau | 53 | Wife-H | — | Maryland |
| 13 | Irvin R. Grimm | 74 | Head | Blacksmith | Maryland |
| 14 | Carrie E. Grimm | 41 | Daughter-H | Teacher | Maryland |
| 15 | D. Rae Grimm | 40 | Daughter | — | Maryland |
| 16 | Minerva D. Gabriel | 11 | Granddaughter | — | Maryland |
| 17 | David R. Losher | 69 | Head | Farmer | Pennsylvania |
| 18 | Emma J. Martin | 37 | Daughter-H | — | Maryland |
| 19 | Lesher D. Martin | 13 | Grandson | — | Maryland |
| 20 | Viola S. Martin | 10 | Granddaughter | — | Maryland |
| 21 | Ada E. Martin | 7 | Granddaughter | — | Maryland |
| 22 | Ezra D. Martin | 5 | Grandson | — | Maryland |
| 23 | Joseph Cheney | 34 | Head | Laborer | Maryland |
| 24 | Vadie M. Cheney | 28 | Wife-H | — | Maryland |
| 25 | Elwood J. Cheney | 5 | Son | — | Maryland |
| 26 | Joseph Cheney | 1 | Son | — | Maryland |
| 27 | Julius F. Rudolph | 24 | Head | Shipping Helper | West Virginia |
| 28 | Susana E. Rudolph | 32 | Wife-H | — | Maryland |
| 29 | Amos F. Rudolph | 2 | Son | — | Maryland |
| 30 | Esther E. Rudolph | 0 | Daughter | — | Maryland |
| 31 | John C. Buchanan | 79 | Head | — | Pennsylvania |
| 32 | Mary E. Buchanan | 64 | Wife-H | — | Maryland |
| 33 | Abram H. Martin | 45 | Head | Farmer | Maryland |
| 34 | Susie V. Martin | 45 | Wife-H | — | Maryland |
| 35 | Norman J. Martin | 19 | Son | Laborer | Maryland |
| 36 | Clyde H. Martin | 18 | Son | Laborer | Maryland |
| 37 | Mabel H. Martin | 15 | Daughter | — | Maryland |
| 38 | Edna F. Martin | 14 | Daughter | — | Maryland |
| 39 | Roy H. Martin THIS PERSON | 12 | Son | — | Maryland |
| 40 | John F. Martin | 10 | Son | — | Maryland |
| 41 | Russel J. Martin | 8 | Son | — | Maryland |
| 42 | Lloyd F. Martin | 5 | Son | — | Maryland |
| 43 | James F. Marker | 55 | Head | Farmer | Maryland |
| 44 | Blanche M. Marker | 52 | Wife-H | — | Maryland |
| 45 | Alice L. Marker | 21 | Daughter | Typist | Maryland |
| 46 | Bertie M. Grimm | 31 | Head-H | Farmer | Virginia |
| 47 | Grady M. Grimm | 8 | Son | — | Virginia |
| 48 | Elwood H. Grimm | 6 | Son | — | Maryland |
| 49 | Bobbie E. Grimm | 1 | Son | — | Maryland |
| 50 | John C. Getter | 34 | Head | Laborer | Maryland |
Related Census Records
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)